diff --git a/pkgs/applications/audio/friture/default.nix b/pkgs/applications/audio/friture/default.nix
index e4bd79a08e31..99ce726ca177 100644
--- a/pkgs/applications/audio/friture/default.nix
+++ b/pkgs/applications/audio/friture/default.nix
@@ -38,7 +38,7 @@ in py.buildPythonApplication rec {
 
   meta = with lib; {
     description = "A real-time audio analyzer";
-    homepage = "http://friture.org/";
+    homepage = "https://friture.org/";
     license = licenses.gpl3;
     platforms = platforms.linux; # fails on Darwin
     maintainers = [ maintainers.laikq ];
diff --git a/pkgs/applications/audio/spectmorph/default.nix b/pkgs/applications/audio/spectmorph/default.nix
index 6292d771a512..9b549e02f77d 100644
--- a/pkgs/applications/audio/spectmorph/default.nix
+++ b/pkgs/applications/audio/spectmorph/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   pname = "spectmorph";
   version = "0.5.2";
   src = fetchurl {
-    url = "http://spectmorph.org/files/releases/${pname}-${version}.tar.bz2";
+    url = "https://spectmorph.org/files/releases/${pname}-${version}.tar.bz2";
     sha256 = "0yrq7mknhk096wfsx0q3b6wwa2w5la0rxa113di26rrrw136xl1f";
   };
 
diff --git a/pkgs/applications/editors/ne/default.nix b/pkgs/applications/editors/ne/default.nix
index fde6542f1605..172b30dbb0ff 100644
--- a/pkgs/applications/editors/ne/default.nix
+++ b/pkgs/applications/editors/ne/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "The nice editor";
-    homepage = "http://ne.di.unimi.it/";
+    homepage = "https://ne.di.unimi.it/";
     longDescription = ''
       ne is a free (GPL'd) text editor based on the POSIX standard that runs
       (we hope) on almost any UN*X machine.  ne is easy to use for the beginner,
diff --git a/pkgs/applications/graphics/scantailor/default.nix b/pkgs/applications/graphics/scantailor/default.nix
index 291825770ac7..898cc3336a55 100644
--- a/pkgs/applications/graphics/scantailor/default.nix
+++ b/pkgs/applications/graphics/scantailor/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
   buildInputs = [ qt4 libjpeg libtiff boost ];
 
   meta = {
-    homepage = "http://scantailor.org/";
+    homepage = "https://scantailor.org/";
     description = "Interactive post-processing tool for scanned pages";
 
     license = lib.licenses.gpl3Plus;
diff --git a/pkgs/applications/misc/audio/wavesurfer/default.nix b/pkgs/applications/misc/audio/wavesurfer/default.nix
index b7e738cfc125..9c8a99a59347 100644
--- a/pkgs/applications/misc/audio/wavesurfer/default.nix
+++ b/pkgs/applications/misc/audio/wavesurfer/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Tool for recording, playing, editing, viewing and labeling of audio";
-    homepage = "http://www.speech.kth.se/wavesurfer/";
+    homepage = "https://www.speech.kth.se/wavesurfer/";
     license = lib.licenses.bsd0;
   };
 }
diff --git a/pkgs/applications/misc/mkgmap/default.nix b/pkgs/applications/misc/mkgmap/default.nix
index f82881eb5bdf..d6fa24c19baf 100644
--- a/pkgs/applications/misc/mkgmap/default.nix
+++ b/pkgs/applications/misc/mkgmap/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   version = "4608";
 
   src = fetchurl {
-    url = "http://www.mkgmap.org.uk/download/mkgmap-r${version}-src.tar.gz";
+    url = "https://www.mkgmap.org.uk/download/mkgmap-r${version}-src.tar.gz";
     sha256 = "uj/iZZHML4nqEKdFBQSDdegkalZFJdzEE4xQrOruEp0=";
   };
 
@@ -73,7 +73,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "Create maps for Garmin GPS devices from OpenStreetMap (OSM) data";
     homepage = "http://www.mkgmap.org.uk";
-    downloadPage = "http://www.mkgmap.org.uk/download/mkgmap.html";
+    downloadPage = "https://www.mkgmap.org.uk/download/mkgmap.html";
     license = licenses.gpl2Only;
     maintainers = with maintainers; [ sikmir ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/mkgmap/splitter/default.nix b/pkgs/applications/misc/mkgmap/splitter/default.nix
index c78d81771caa..9e034b58110d 100644
--- a/pkgs/applications/misc/mkgmap/splitter/default.nix
+++ b/pkgs/applications/misc/mkgmap/splitter/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   version = "598";
 
   src = fetchurl {
-    url = "http://www.mkgmap.org.uk/download/splitter-r${version}-src.tar.gz";
+    url = "https://www.mkgmap.org.uk/download/splitter-r${version}-src.tar.gz";
     sha256 = "gpbJpDBXA9tmSmx9oKLa7xWtIOHBTYd1iPPgNTC2C2M=";
   };
 
@@ -69,7 +69,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "Utility for splitting OpenStreetMap maps into tiles";
     homepage = "http://www.mkgmap.org.uk";
-    downloadPage = "http://www.mkgmap.org.uk/download/splitter.html";
+    downloadPage = "https://www.mkgmap.org.uk/download/splitter.html";
     license = licenses.gpl2Only;
     maintainers = with maintainers; [ sikmir ];
     platforms = platforms.all;
diff --git a/pkgs/applications/misc/mkgmap/splitter/testinputs.nix b/pkgs/applications/misc/mkgmap/splitter/testinputs.nix
index ab81b07ed8dd..0d73f9710291 100644
--- a/pkgs/applications/misc/mkgmap/splitter/testinputs.nix
+++ b/pkgs/applications/misc/mkgmap/splitter/testinputs.nix
@@ -2,7 +2,7 @@
 let
   fetchTestInput = { res, sha256 }: fetchurl {
     inherit sha256;
-    url = "http://www.mkgmap.org.uk/testinput/${res}";
+    url = "https://www.mkgmap.org.uk/testinput/${res}";
     name = builtins.replaceStrings [ "/" ] [ "__" ] res;
   };
 in
diff --git a/pkgs/applications/misc/mkgmap/testinputs.nix b/pkgs/applications/misc/mkgmap/testinputs.nix
index 0c4516190e00..93c858a38895 100644
--- a/pkgs/applications/misc/mkgmap/testinputs.nix
+++ b/pkgs/applications/misc/mkgmap/testinputs.nix
@@ -2,7 +2,7 @@
 let
   fetchTestInput = { res, sha256 }: fetchurl {
     inherit sha256;
-    url = "http://www.mkgmap.org.uk/testinput/${res}";
+    url = "https://www.mkgmap.org.uk/testinput/${res}";
     name = builtins.replaceStrings [ "/" ] [ "__" ] res;
   };
 in
diff --git a/pkgs/applications/networking/cluster/hadoop/default.nix b/pkgs/applications/networking/cluster/hadoop/default.nix
index ef93b5cbdb07..589ce21fe87b 100644
--- a/pkgs/applications/networking/cluster/hadoop/default.nix
+++ b/pkgs/applications/networking/cluster/hadoop/default.nix
@@ -109,7 +109,7 @@ let
         '';
 
         meta = with lib; {
-          homepage = "http://hadoop.apache.org/";
+          homepage = "https://hadoop.apache.org/";
           description = "Framework for distributed processing of large data sets across clusters of computers";
           license = licenses.asl20;
 
diff --git a/pkgs/applications/office/osmo/default.nix b/pkgs/applications/office/osmo/default.nix
index 77cc087c66b4..975305a72173 100644
--- a/pkgs/applications/office/osmo/default.nix
+++ b/pkgs/applications/office/osmo/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A handy personal organizer";
-    homepage = "http://clayo.org/osmo/";
+    homepage = "https://clayo.org/osmo/";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/applications/science/logic/verifast/default.nix b/pkgs/applications/science/logic/verifast/default.nix
index e426f7b80989..a33c4941ac4f 100644
--- a/pkgs/applications/science/logic/verifast/default.nix
+++ b/pkgs/applications/science/logic/verifast/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Verification for C and Java programs via separation logic";
-    homepage    = "http://people.cs.kuleuven.be/~bart.jacobs/verifast/";
+    homepage    = "https://people.cs.kuleuven.be/~bart.jacobs/verifast/";
     license     = lib.licenses.mit;
     platforms   = [ "x86_64-linux" ];
     maintainers = [ lib.maintainers.thoughtpolice ];
diff --git a/pkgs/applications/science/math/nauty/default.nix b/pkgs/applications/science/math/nauty/default.nix
index a941a6334508..c435c63ab2ef 100644
--- a/pkgs/applications/science/math/nauty/default.nix
+++ b/pkgs/applications/science/math/nauty/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   pname = "nauty";
   version = "27r1";
   src = fetchurl {
-    url = "http://pallini.di.uniroma1.it/nauty${version}.tar.gz";
+    url = "https://pallini.di.uniroma1.it/nauty${version}.tar.gz";
     sha256 = "0xsfqfcknbd6g6wzpa5l7crmmk3bf3zjh37rhylq6b20dqcmvjkn";
   };
   outputs = [ "out" "dev" ];
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
     # I'm not sure if the filename will remain the same for future changelog or
     # if it will track changes to minor releases. Lets see. Better than nothing
     # in any case.
-    changelog = "http://pallini.di.uniroma1.it/changes24-27.txt";
-    homepage = "http://pallini.di.uniroma1.it/";
+    changelog = "https://pallini.di.uniroma1.it/changes24-27.txt";
+    homepage = "https://pallini.di.uniroma1.it/";
   };
 }
diff --git a/pkgs/applications/virtualization/bochs/default.nix b/pkgs/applications/virtualization/bochs/default.nix
index e614b3da2b0c..002848380c2b 100644
--- a/pkgs/applications/virtualization/bochs/default.nix
+++ b/pkgs/applications/virtualization/bochs/default.nix
@@ -134,7 +134,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with lib; {
-    homepage = "http://bochs.sourceforge.io/";
+    homepage = "https://bochs.sourceforge.io/";
     description = "An open-source IA-32 (x86) PC emulator";
     longDescription = ''
       Bochs is an open-source (LGPL), highly portable IA-32 PC emulator, written
diff --git a/pkgs/data/fonts/terminus-font-ttf/default.nix b/pkgs/data/fonts/terminus-font-ttf/default.nix
index 1a65798891f5..1ebf987fcd56 100644
--- a/pkgs/data/fonts/terminus-font-ttf/default.nix
+++ b/pkgs/data/fonts/terminus-font-ttf/default.nix
@@ -5,7 +5,7 @@ let
 in fetchzip {
   name = "terminus-font-ttf-${version}";
 
-  url = "http://files.ax86.net/terminus-ttf/files/${version}/terminus-ttf-${version}.zip";
+  url = "https://files.ax86.net/terminus-ttf/files/${version}/terminus-ttf-${version}.zip";
 
   postFetch = ''
     unzip -j $downloadedFile
@@ -26,7 +26,7 @@ in fetchzip {
       Monospaced bitmap font designed for long work with computers
       (TTF version, mainly for Java applications)
     '';
-    homepage = "http://files.ax86.net/terminus-ttf";
+    homepage = "https://files.ax86.net/terminus-ttf";
     license = licenses.ofl;
     maintainers = with maintainers; [ okasu ];
   };
diff --git a/pkgs/development/compilers/terra/default.nix b/pkgs/development/compilers/terra/default.nix
index 3174744fdde8..9919973de241 100644
--- a/pkgs/development/compilers/terra/default.nix
+++ b/pkgs/development/compilers/terra/default.nix
@@ -81,7 +81,7 @@ in stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A low-level counterpart to Lua";
-    homepage = "http://terralang.org/";
+    homepage = "https://terralang.org/";
     platforms = platforms.x86_64;
     maintainers = with maintainers; [ jb55 seylerius thoughtpolice ];
     license = licenses.mit;
diff --git a/pkgs/development/interpreters/io/default.nix b/pkgs/development/interpreters/io/default.nix
index 48462a333bcb..9f6ecb2516ed 100644
--- a/pkgs/development/interpreters/io/default.nix
+++ b/pkgs/development/interpreters/io/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation {
 
   meta = with lib; {
     description = "Io programming language";
-    homepage = "http://iolanguage.org/";
+    homepage = "https://iolanguage.org/";
     license = licenses.bsd3;
 
     maintainers = with maintainers; [
diff --git a/pkgs/development/libraries/libnetfilter_acct/default.nix b/pkgs/development/libraries/libnetfilter_acct/default.nix
index 72766471d2f1..6c52d7f7b560 100644
--- a/pkgs/development/libraries/libnetfilter_acct/default.nix
+++ b/pkgs/development/libraries/libnetfilter_acct/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libmnl ];
 
   meta = with lib; {
-    homepage = "http://www.netfilter.org/projects/libnetfilter_acct/";
+    homepage = "https://www.netfilter.org/projects/libnetfilter_acct/";
     description = "Userspace library providing interface to extended accounting infrastructure";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/development/libraries/libnetfilter_cthelper/default.nix b/pkgs/development/libraries/libnetfilter_cthelper/default.nix
index b8b05e57dad2..294f776192d7 100644
--- a/pkgs/development/libraries/libnetfilter_cthelper/default.nix
+++ b/pkgs/development/libraries/libnetfilter_cthelper/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
       library, you register, configure, enable and disable user-space helpers. This library
       is used by conntrack-tools.
     '';
-    homepage = "http://www.netfilter.org/projects/libnetfilter_cthelper/";
+    homepage = "https://www.netfilter.org/projects/libnetfilter_cthelper/";
     license = lib.licenses.gpl2Plus;
     platforms = lib.platforms.linux;
   };
diff --git a/pkgs/development/libraries/libnetfilter_queue/default.nix b/pkgs/development/libraries/libnetfilter_queue/default.nix
index 7dafcd42223f..d1783289965e 100644
--- a/pkgs/development/libraries/libnetfilter_queue/default.nix
+++ b/pkgs/development/libraries/libnetfilter_queue/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ libmnl libnfnetlink ];
 
   meta = with lib; {
-    homepage = "http://www.netfilter.org/projects/libnetfilter_queue/";
+    homepage = "https://www.netfilter.org/projects/libnetfilter_queue/";
     description = "Userspace API to packets queued by the kernel packet filter";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/development/libraries/libnfnetlink/default.nix b/pkgs/development/libraries/libnfnetlink/default.nix
index 4c7b4a5cc2dd..a070d2e3af2e 100644
--- a/pkgs/development/libraries/libnfnetlink/default.nix
+++ b/pkgs/development/libraries/libnfnetlink/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
       This library is not meant as a public API for application developers.
       It is only used by other netfilter.org projects, like the aforementioned ones.
     '';
-    homepage = "http://www.netfilter.org/projects/libnfnetlink/index.html";
+    homepage = "https://www.netfilter.org/projects/libnfnetlink/index.html";
     license = lib.licenses.gpl2;
 
     platforms = lib.platforms.linux;
diff --git a/pkgs/development/libraries/librdf/raptor.nix b/pkgs/development/libraries/librdf/raptor.nix
index 8d1b1f2a0ea4..ef755b821550 100644
--- a/pkgs/development/libraries/librdf/raptor.nix
+++ b/pkgs/development/libraries/librdf/raptor.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "The RDF Parser Toolkit";
-    homepage = "http://librdf.org/raptor";
+    homepage = "https://librdf.org/raptor";
     license = with lib.licenses; [ lgpl21 asl20 ];
     maintainers = [ lib.maintainers.marcweber ];
     platforms = lib.platforms.linux;
diff --git a/pkgs/development/libraries/librdf/raptor2.nix b/pkgs/development/libraries/librdf/raptor2.nix
index bb8aeefa102c..656558146857 100644
--- a/pkgs/development/libraries/librdf/raptor2.nix
+++ b/pkgs/development/libraries/librdf/raptor2.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "The RDF Parser Toolkit";
-    homepage = "http://librdf.org/raptor";
+    homepage = "https://librdf.org/raptor";
     license = with lib.licenses; [ lgpl21 asl20 ];
     maintainers = with lib.maintainers; [ marcweber ];
     platforms = lib.platforms.unix;
diff --git a/pkgs/development/libraries/librdf/rasqal.nix b/pkgs/development/libraries/librdf/rasqal.nix
index 88acc372f7f5..0dd5b87377f3 100644
--- a/pkgs/development/libraries/librdf/rasqal.nix
+++ b/pkgs/development/libraries/librdf/rasqal.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Library that handles Resource Description Framework (RDF)";
-    homepage = "http://librdf.org/rasqal";
+    homepage = "https://librdf.org/rasqal";
     license = with lib.licenses; [ lgpl21 asl20 ];
     maintainers = with lib.maintainers; [ marcweber ];
     platforms = lib.platforms.unix;
diff --git a/pkgs/development/libraries/librdf/redland.nix b/pkgs/development/libraries/librdf/redland.nix
index 731d1cf18684..5ac2c711104b 100644
--- a/pkgs/development/libraries/librdf/redland.nix
+++ b/pkgs/development/libraries/librdf/redland.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "C libraries that provide support for the Resource Description Framework (RDF)";
-    homepage = "http://librdf.org/";
+    homepage = "https://librdf.org/";
     platforms = platforms.unix;
     license = licenses.asl20;
   };
diff --git a/pkgs/development/libraries/libroxml/default.nix b/pkgs/development/libraries/libroxml/default.nix
index de1877f2ab40..39c8eab5a65b 100644
--- a/pkgs/development/libraries/libroxml/default.nix
+++ b/pkgs/development/libraries/libroxml/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation {
     sha256  = "0y0vc9n4rfbimjp28nx4kdfzz08j5xymh5xjy84l9fhfac5z5a0x";
   };
   meta = with lib; {
-    homepage = "http://www.libroxml.net/";
+    homepage = "https://www.libroxml.net/";
     description = "This library is minimum, easy-to-use, C implementation for xml file parsing";
     license = licenses.lgpl3;
     platforms = platforms.unix;
diff --git a/pkgs/development/libraries/libvmi/default.nix b/pkgs/development/libraries/libvmi/default.nix
index 9d9e47407b62..36fd026eeedd 100644
--- a/pkgs/development/libraries/libvmi/default.nix
+++ b/pkgs/development/libraries/libvmi/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage = "http://libvmi.com/";
+    homepage = "https://libvmi.com/";
     description = "A C library for virtual machine introspection";
     longDescription = ''
       LibVMI is a C library with Python bindings that makes it easy to monitor the low-level
diff --git a/pkgs/development/libraries/qt-4.x/4.8/default.nix b/pkgs/development/libraries/qt-4.x/4.8/default.nix
index ed93d86a1979..5856e0b84b5c 100644
--- a/pkgs/development/libraries/qt-4.x/4.8/default.nix
+++ b/pkgs/development/libraries/qt-4.x/4.8/default.nix
@@ -229,7 +229,7 @@ stdenv.mkDerivation rec {
   dontStrip = stdenv.hostPlatform != stdenv.buildPlatform;
 
   meta = {
-    homepage    = "http://qt-project.org/";
+    homepage    = "https://qt-project.org/";
     description = "A cross-platform application framework for C++";
     license     = lib.licenses.lgpl21Plus; # or gpl3
     maintainers = with lib.maintainers; [ orivej lovek323 phreedom sander ];
diff --git a/pkgs/development/libraries/raylib/default.nix b/pkgs/development/libraries/raylib/default.nix
index 836bafd4280f..9843141fc008 100644
--- a/pkgs/development/libraries/raylib/default.nix
+++ b/pkgs/development/libraries/raylib/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "A simple and easy-to-use library to enjoy videogames programming";
-    homepage = "http://www.raylib.com/";
+    homepage = "https://www.raylib.com/";
     license = licenses.zlib;
     maintainers = with maintainers; [ adamlwgriffiths ];
     platforms = platforms.linux;
diff --git a/pkgs/development/libraries/snack/default.nix b/pkgs/development/libraries/snack/default.nix
index 8750bdf2ac6c..8c97d0224c66 100644
--- a/pkgs/development/libraries/snack/default.nix
+++ b/pkgs/development/libraries/snack/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "The Snack Sound Toolkit (Tcl)";
-    homepage = "http://www.speech.kth.se/snack/";
+    homepage = "https://www.speech.kth.se/snack/";
     license = lib.licenses.gpl2;
     broken = true;
   };
diff --git a/pkgs/development/node-packages/node-packages.nix b/pkgs/development/node-packages/node-packages.nix
index 45cc5cdeac62..3acc583f8a0e 100644
--- a/pkgs/development/node-packages/node-packages.nix
+++ b/pkgs/development/node-packages/node-packages.nix
@@ -89128,7 +89128,7 @@ in
     buildInputs = globalBuildInputs;
     meta = {
       description = "Utility to inline images, CSS and JavaScript for a web page - useful for mobile sites";
-      homepage = "http://github.com/remy/inliner";
+      homepage = "https://github.com/remy/inliner";
       license = "MIT";
     };
     production = true;
@@ -90816,7 +90816,7 @@ in
     buildInputs = globalBuildInputs;
     meta = {
       description = "Static analysis tool for JavaScript";
-      homepage = "http://jshint.com/";
+      homepage = "https://jshint.com/";
       license = "MIT";
     };
     production = true;
@@ -103950,7 +103950,7 @@ in
     buildInputs = globalBuildInputs;
     meta = {
       description = "Production process manager for Node.JS applications with a built-in load balancer.";
-      homepage = "http://pm2.keymetrics.io/";
+      homepage = "https://pm2.keymetrics.io/";
       license = "AGPL-3.0";
     };
     production = true;
diff --git a/pkgs/development/ocaml-modules/cudf/default.nix b/pkgs/development/ocaml-modules/cudf/default.nix
index d2090cda6769..22de0e690c8b 100644
--- a/pkgs/development/ocaml-modules/cudf/default.nix
+++ b/pkgs/development/ocaml-modules/cudf/default.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation {
 
   meta = with lib; {
     description = "A library for CUDF format";
-    homepage = "http://www.mancoosi.org/cudf/";
+    homepage = "https://www.mancoosi.org/cudf/";
     downloadPage = "https://gforge.inria.fr/projects/cudf/";
     license = licenses.lgpl3;
     maintainers = with maintainers; [ superherointj ];
diff --git a/pkgs/development/ocaml-modules/dose3/default.nix b/pkgs/development/ocaml-modules/dose3/default.nix
index 3397527fd63f..733427cdb914 100644
--- a/pkgs/development/ocaml-modules/dose3/default.nix
+++ b/pkgs/development/ocaml-modules/dose3/default.nix
@@ -46,7 +46,7 @@ buildDunePackage rec {
   meta = with lib; {
     description = "Dose library (part of Mancoosi tools)";
     downloadPage = "https://gitlab.com/irill/dose3/";
-    homepage = "http://www.mancoosi.org/software/";
+    homepage = "https://www.mancoosi.org/software/";
     license = licenses.lgpl3Plus;
     longDescription = ''
       The dose suite provides libraries for handling package meta-data, and various tools for analyzing package relationships in a large package repository.
diff --git a/pkgs/development/python-modules/autologging/default.nix b/pkgs/development/python-modules/autologging/default.nix
index fdd935303d02..1b3a7d652185 100644
--- a/pkgs/development/python-modules/autologging/default.nix
+++ b/pkgs/development/python-modules/autologging/default.nix
@@ -11,7 +11,7 @@ buildPythonPackage rec {
   };
 
   meta = with lib; {
-    homepage = "http://ninthtest.info/python-autologging/";
+    homepage = "https://ninthtest.info/python-autologging/";
     description = "Easier logging and tracing for Python classes";
     license = licenses.mit;
     maintainers = with maintainers; [ twey ];
diff --git a/pkgs/development/python-modules/pweave/default.nix b/pkgs/development/python-modules/pweave/default.nix
index 1b8e1a3cc6f1..b97d51496521 100644
--- a/pkgs/development/python-modules/pweave/default.nix
+++ b/pkgs/development/python-modules/pweave/default.nix
@@ -28,7 +28,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "Scientific reports with embedded python computations with reST, LaTeX or markdown";
-    homepage = "http://mpastell.com/pweave/";
+    homepage = "https://mpastell.com/pweave/";
     license = licenses.bsd3;
   };
 
diff --git a/pkgs/development/python-modules/pyfantom/default.nix b/pkgs/development/python-modules/pyfantom/default.nix
index d7c77e763e76..d27cccfbd8c0 100644
--- a/pkgs/development/python-modules/pyfantom/default.nix
+++ b/pkgs/development/python-modules/pyfantom/default.nix
@@ -16,7 +16,7 @@ buildPythonPackage {
   doCheck = false;
 
   meta = with lib; {
-    homepage = "http://pyfantom.ni.fr.eu.org/";
+    homepage = "https://pyfantom.ni.fr.eu.org/";
     description = "Wrapper for the LEGO Mindstorms Fantom Driver";
     license = licenses.gpl2;
   };
diff --git a/pkgs/development/python-modules/pyqtgraph/default.nix b/pkgs/development/python-modules/pyqtgraph/default.nix
index 54a136d5dcd4..49401bf1f843 100644
--- a/pkgs/development/python-modules/pyqtgraph/default.nix
+++ b/pkgs/development/python-modules/pyqtgraph/default.nix
@@ -55,7 +55,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "Scientific Graphics and GUI Library for Python";
-    homepage = "http://www.pyqtgraph.org/";
+    homepage = "https://www.pyqtgraph.org/";
     changelog = "https://github.com/pyqtgraph/pyqtgraph/blob/master/CHANGELOG";
     license = licenses.mit;
     platforms = platforms.unix;
diff --git a/pkgs/development/python-modules/python-uinput/default.nix b/pkgs/development/python-modules/python-uinput/default.nix
index 8d82ffb6b3b9..efb1288943af 100644
--- a/pkgs/development/python-modules/python-uinput/default.nix
+++ b/pkgs/development/python-modules/python-uinput/default.nix
@@ -16,7 +16,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "Pythonic API to Linux uinput kernel module";
-    homepage = "http://tjjr.fi/sw/python-uinput/";
+    homepage = "https://tjjr.fi/sw/python-uinput/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ abbradar ];
   };
diff --git a/pkgs/development/python-modules/vispy/default.nix b/pkgs/development/python-modules/vispy/default.nix
index 5524258a7e82..849f25ef0df3 100644
--- a/pkgs/development/python-modules/vispy/default.nix
+++ b/pkgs/development/python-modules/vispy/default.nix
@@ -32,7 +32,7 @@ buildPythonPackage rec {
   pythonImportsCheck = [ "vispy" ];
 
   meta = with lib; {
-    homepage = "http://vispy.org/index.html";
+    homepage = "https://vispy.org/index.html";
     description = "Interactive scientific visualization in Python";
     license = licenses.bsd3;
     maintainers = with maintainers; [ goertzenator ];
diff --git a/pkgs/development/python-modules/xstatic-jquery-file-upload/default.nix b/pkgs/development/python-modules/xstatic-jquery-file-upload/default.nix
index 0316a8493762..ce3f8c76dfa6 100644
--- a/pkgs/development/python-modules/xstatic-jquery-file-upload/default.nix
+++ b/pkgs/development/python-modules/xstatic-jquery-file-upload/default.nix
@@ -19,7 +19,7 @@ buildPythonPackage rec {
   propagatedBuildInputs = [ xstatic-jquery ];
 
   meta = with lib;{
-    homepage =  "http://plugins.jquery.com/project/jQuery-File-Upload";
+    homepage =  "https://plugins.jquery.com/project/jQuery-File-Upload";
     description = "jquery-file-upload packaged static files for python";
     license = licenses.mit;
     maintainers = with maintainers; [ makefu ];
diff --git a/pkgs/development/tools/ammonite/default.nix b/pkgs/development/tools/ammonite/default.nix
index ffd3b78cedd7..ab1ea2a82a33 100644
--- a/pkgs/development/tools/ammonite/default.nix
+++ b/pkgs/development/tools/ammonite/default.nix
@@ -66,7 +66,7 @@ let
           with a lot of ergonomic improvements and configurability
           that may be familiar to people coming from IDEs or other REPLs such as IPython or Zsh.
         '';
-        homepage = "http://www.lihaoyi.com/Ammonite/";
+        homepage = "https://www.lihaoyi.com/Ammonite/";
         license = licenses.mit;
         platforms = platforms.all;
         maintainers = [ maintainers.nequissimus ];
diff --git a/pkgs/development/tools/lattice-diamond/default.nix b/pkgs/development/tools/lattice-diamond/default.nix
index ce3525420613..e8bc4c1b1be5 100644
--- a/pkgs/development/tools/lattice-diamond/default.nix
+++ b/pkgs/development/tools/lattice-diamond/default.nix
@@ -109,7 +109,7 @@ stdenv.mkDerivation {
       for cost- sensitive, low-power Lattice FPGA architectures. It is the
       next-generation replacement for ispLEVER.
     '';
-    homepage = "http://www.latticesemi.com/latticediamond";
+    homepage = "https://www.latticesemi.com/latticediamond";
     license = lib.licenses.unfree;
     maintainers = with lib.maintainers; [ q3k ];
     platforms = [ "x86_64-linux" ];
diff --git a/pkgs/development/tools/ocaml/camlidl/default.nix b/pkgs/development/tools/ocaml/camlidl/default.nix
index a464996ff381..36a1c7f755e1 100644
--- a/pkgs/development/tools/ocaml/camlidl/default.nix
+++ b/pkgs/development/tools/ocaml/camlidl/default.nix
@@ -2,7 +2,7 @@
 
 let
   pname = "camlidl";
-  webpage = "http://caml.inria.fr/pub/old_caml_site/camlidl/";
+  webpage = "https://caml.inria.fr/pub/old_caml_site/camlidl/";
 in
 stdenv.mkDerivation rec {
   name = "${pname}-${version}";
diff --git a/pkgs/development/web/remarkjs/node-packages.nix b/pkgs/development/web/remarkjs/node-packages.nix
index 5f5d3576b761..9add677c2488 100644
--- a/pkgs/development/web/remarkjs/node-packages.nix
+++ b/pkgs/development/web/remarkjs/node-packages.nix
@@ -3674,7 +3674,7 @@ in
     buildInputs = globalBuildInputs;
     meta = {
       description = "Static analysis tool for JavaScript";
-      homepage = "http://jshint.com/";
+      homepage = "https://jshint.com/";
       license = "MIT";
     };
     production = true;
diff --git a/pkgs/games/freedroidrpg/default.nix b/pkgs/games/freedroidrpg/default.nix
index 53b008d11dde..e0582c524eca 100644
--- a/pkgs/games/freedroidrpg/default.nix
+++ b/pkgs/games/freedroidrpg/default.nix
@@ -53,7 +53,7 @@ in stdenv.mkDerivation {
       </para>
     '';
 
-    homepage = "http://www.freedroid.org/";
+    homepage = "https://www.freedroid.org/";
 
     license = licenses.gpl2Plus;
 
diff --git a/pkgs/os-specific/linux/firmware/broadcom-bt-firmware/default.nix b/pkgs/os-specific/linux/firmware/broadcom-bt-firmware/default.nix
index 5118d0a0b9bf..a0985cad0dbe 100644
--- a/pkgs/os-specific/linux/firmware/broadcom-bt-firmware/default.nix
+++ b/pkgs/os-specific/linux/firmware/broadcom-bt-firmware/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Firmware for Broadcom WIDCOMM® Bluetooth devices";
-    homepage = "http://www.catalog.update.microsoft.com/Search.aspx?q=Broadcom+bluetooth";
+    homepage = "https://www.catalog.update.microsoft.com/Search.aspx?q=Broadcom+bluetooth";
     license = licenses.unfree;
     platforms = platforms.linux;
     maintainers = with maintainers; [ zraexy ];
diff --git a/pkgs/os-specific/linux/ipset/default.nix b/pkgs/os-specific/linux/ipset/default.nix
index dd9fadfd02f0..7b4322657e54 100644
--- a/pkgs/os-specific/linux/ipset/default.nix
+++ b/pkgs/os-specific/linux/ipset/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "7.14";
 
   src = fetchurl {
-    url = "http://ipset.netfilter.org/${pname}-${version}.tar.bz2";
+    url = "https://ipset.netfilter.org/${pname}-${version}.tar.bz2";
     sha256 = "sha256-JwMcNtNVkHAxzOQeZVU+mbsBPXYvzVU5L2PX6Edg+QA=";
   };
 
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   configureFlags = [ "--with-kmod=no" ];
 
   meta = with lib; {
-    homepage = "http://ipset.netfilter.org/";
+    homepage = "https://ipset.netfilter.org/";
     description = "Administration tool for IP sets";
     license = licenses.gpl2;
     platforms = platforms.linux;
diff --git a/pkgs/os-specific/windows/jom/default.nix b/pkgs/os-specific/windows/jom/default.nix
index a2fbdde95aa9..f3a953576ec9 100644
--- a/pkgs/os-specific/windows/jom/default.nix
+++ b/pkgs/os-specific/windows/jom/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = "http://qt-project.org/wiki/jom";
+    homepage = "https://qt-project.org/wiki/jom";
     description = "Clone of nmake supporting multiple independent commands in parallel";
     license = lib.licenses.gpl2Plus; # Explicitly, GPLv2 or GPLv3, but not later.
   };
diff --git a/pkgs/servers/monitoring/munin/default.nix b/pkgs/servers/monitoring/munin/default.nix
index a86dd8471ce6..ac9b015480ee 100644
--- a/pkgs/servers/monitoring/munin/default.nix
+++ b/pkgs/servers/monitoring/munin/default.nix
@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
   # needs to find a local perl module during build
   PERL_USE_UNSAFE_INC = "1";
 
-  # TODO: tests are failing http://munin-monitoring.org/ticket/1390#comment:1
+  # TODO: tests are failing https://munin-monitoring.org/ticket/1390#comment:1
   # NOTE: important, test command always exits with 0, think of a way to abort the build once tests pass
   doCheck = false;
 
@@ -134,7 +134,7 @@ stdenv.mkDerivation rec {
       interface. Munin can help analyze resource trends and 'what just happened
       to kill our performance?' problems.
     '';
-    homepage = "http://munin-monitoring.org/";
+    homepage = "https://munin-monitoring.org/";
     license = licenses.gpl2;
     maintainers = [ maintainers.bjornfor ];
     platforms = platforms.linux;
diff --git a/pkgs/servers/nosql/aerospike/default.nix b/pkgs/servers/nosql/aerospike/default.nix
index 33347a73a20c..db7b39ac5c7a 100644
--- a/pkgs/servers/nosql/aerospike/default.nix
+++ b/pkgs/servers/nosql/aerospike/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Flash-optimized, in-memory, NoSQL database";
-    homepage = "http://aerospike.com/";
+    homepage = "https://aerospike.com/";
     license = licenses.agpl3;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ kalbasit ];
diff --git a/pkgs/tools/misc/kermit/default.nix b/pkgs/tools/misc/kermit/default.nix
index 1a561f0bef47..8af0674f54bf 100644
--- a/pkgs/tools/misc/kermit/default.nix
+++ b/pkgs/tools/misc/kermit/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation {
   '';
 
   meta = with lib; {
-    homepage = "http://www.kermitproject.org/ck90.html";
+    homepage = "https://www.kermitproject.org/ck90.html";
     description = "Portable Scriptable Network and Serial Communication Software";
     license = licenses.bsd3;
     maintainers = with maintainers; [ pSub ];
diff --git a/pkgs/tools/package-management/holo-build/default.nix b/pkgs/tools/package-management/holo-build/default.nix
index 8f88ae08762b..20e3b555fd2f 100644
--- a/pkgs/tools/package-management/holo-build/default.nix
+++ b/pkgs/tools/package-management/holo-build/default.nix
@@ -52,7 +52,7 @@ buildGoModule rec {
 
   meta = with lib; {
     description = "Cross-distribution system package compiler";
-    homepage = "http://holocm.org/";
+    homepage = "https://holocm.org/";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ SuperSandro2000 ];
   };
diff --git a/pkgs/tools/text/jumanpp/default.nix b/pkgs/tools/text/jumanpp/default.nix
index 5578ed417a27..5fb5ec88d679 100644
--- a/pkgs/tools/text/jumanpp/default.nix
+++ b/pkgs/tools/text/jumanpp/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
       plausibility of word sequences by using a recurrent neural network
       language model (RNNLM).
     '';
-    homepage = "http://nlp.ist.i.kyoto-u.ac.jp/index.php?JUMAN++";
+    homepage = "https://nlp.ist.i.kyoto-u.ac.jp/index.php?JUMAN++";
     license = licenses.asl20;
     maintainers = with maintainers; [ mt-caret ];
     platforms = platforms.all;
diff --git a/pkgs/tools/text/popfile/default.nix b/pkgs/tools/text/popfile/default.nix
index e2f5952077f3..7cfb2d2d6a4b 100644
--- a/pkgs/tools/text/popfile/default.nix
+++ b/pkgs/tools/text/popfile/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   name = "${appname}-${version}";
 
   src = fetchzip {
-    url = "http://getpopfile.org/downloads/${appname}-${version}.zip";
+    url = "https://getpopfile.org/downloads/${appname}-${version}.zip";
     sha256 = "0gcib9j7zxk8r2vb5dbdz836djnyfza36vi8215nxcdfx1xc7l63";
     stripRoot = false;
   };
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ makeWrapper ];
   buildInputs = (with perlPackages; [
     ## These are all taken from the popfile documentation as applicable to Linux
-    ## http://getpopfile.org/docs/howtos:allplatformsrequireperl
+    ## https://getpopfile.org/docs/howtos:allplatformsrequireperl
     perl
     DBI
     DBDSQLite
@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
 
     # Should work on macOS, but havent tested it.
     # Windows support is more complicated.
-    # http://getpopfile.org/docs/faq:systemrequirements
+    # https://getpopfile.org/docs/faq:systemrequirements
     platforms = lib.platforms.linux;
   };
 }
diff --git a/pkgs/tools/video/vnc2flv/default.nix b/pkgs/tools/video/vnc2flv/default.nix
index 88ec2f22b89b..fdaf2ee27466 100644
--- a/pkgs/tools/video/vnc2flv/default.nix
+++ b/pkgs/tools/video/vnc2flv/default.nix
@@ -14,7 +14,7 @@ pythonPackages.buildPythonApplication rec {
 
   meta = {
     description = "Tool to record VNC sessions to Flash Video";
-    homepage = "http://www.unixuser.org/~euske/python/vnc2flv/";
+    homepage = "https://www.unixuser.org/~euske/python/vnc2flv/";
     license = lib.licenses.mit;
   };
 }