diff --git a/pkgs/applications/audio/sonata/default.nix b/pkgs/applications/audio/sonata/default.nix
index cf3f173a096e..afb027689602 100644
--- a/pkgs/applications/audio/sonata/default.nix
+++ b/pkgs/applications/audio/sonata/default.nix
@@ -5,13 +5,13 @@ let
   inherit (python3Packages) buildPythonApplication isPy3k dbus-python pygobject3 mpd2 setuptools;
 in buildPythonApplication rec {
   pname = "sonata";
-  version = "1.7b1";
+  version = "1.7.0";
 
   src = fetchFromGitHub {
     owner = "multani";
     repo = "sonata";
     rev = "v${version}";
-    sha256 = "1npbxlrg6k154qybfd250nq2p96kxdsdkj9wwnp93gljnii3g8wh";
+    sha256 = "0rl8w7s2asff626clzfvyz987l2k4ml5dg417mqp9v8a962q0v2x";
   };
 
   disabled = !isPy3k;
diff --git a/pkgs/desktops/gnome-3/misc/gnome-tweaks/default.nix b/pkgs/desktops/gnome-3/misc/gnome-tweaks/default.nix
index a042ce134a94..b6a12fca1334 100644
--- a/pkgs/desktops/gnome-3/misc/gnome-tweaks/default.nix
+++ b/pkgs/desktops/gnome-3/misc/gnome-tweaks/default.nix
@@ -20,13 +20,13 @@
 
 python3Packages.buildPythonApplication rec {
   pname = "gnome-tweaks";
-  version = "3.34.0";
+  version = "3.34.1";
   format = "other";
   strictDeps = false; # https://github.com/NixOS/nixpkgs/issues/56943
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "0l2j42ba7v866iknygamnkiq7igh0fjvq92r93cslvvfnkx2ccq0";
+    sha256 = "19y62dj4n5i6v4zpjllxl51dch6ndy8xs45v5aqmmq9xyfrqk5yq";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/compilers/ocaml/4.12.nix b/pkgs/development/compilers/ocaml/4.12.nix
index 444d332817b6..16649f09869f 100644
--- a/pkgs/development/compilers/ocaml/4.12.nix
+++ b/pkgs/development/compilers/ocaml/4.12.nix
@@ -1,9 +1,9 @@
 import ./generic.nix {
   major_version = "4";
   minor_version = "12";
-  patch_version = "0-alpha2";
+  patch_version = "0-alpha3";
   src = fetchTarball {
-    url = "http://caml.inria.fr/pub/distrib/ocaml-4.12/ocaml-4.12.0~alpha2.tar.xz";
-    sha256 = "148vgjcfajjvrvh0q9kb2y7fszqd02cikb5wyznz7kjxka6xxyn9";
+    url = "http://caml.inria.fr/pub/distrib/ocaml-4.12/ocaml-4.12.0~alpha3.tar.xz";
+    sha256 = "1hqlf9fi5gmvb6r13z5819rg6k813bw9ihgbbji67hhh4q361wlw";
   };
 }
diff --git a/pkgs/development/ocaml-modules/ounit2/default.nix b/pkgs/development/ocaml-modules/ounit2/default.nix
index 708c9a6c19e2..52676a1c88d9 100644
--- a/pkgs/development/ocaml-modules/ounit2/default.nix
+++ b/pkgs/development/ocaml-modules/ounit2/default.nix
@@ -1,18 +1,21 @@
-{ lib, buildDunePackage, fetchurl, stdlib-shims }:
+{ lib, ocaml, buildDunePackage, fetchurl, stdlib-shims, ncurses }:
 
 buildDunePackage rec {
   minimumOCamlVersion = "4.04";
 
   pname = "ounit2";
-  version = "2.2.3";
+  version = "2.2.4";
 
   src = fetchurl {
     url = "https://github.com/gildor478/ounit/releases/download/v${version}/ounit-v${version}.tbz";
-    sha256 = "1naahh24lbyxmrnzpfz8karniqbf1nknivf96mrvsr6zlx5ad072";
+    sha256 = "0i9kiqbf2dp12c4qcvbn4abdpdp6h4g5z54ycsh0q8jpv6jnkh5m";
   };
 
   propagatedBuildInputs = [ stdlib-shims ];
 
+  doCheck = true;
+  checkInputs = lib.optional (lib.versionOlder ocaml.version "4.07") ncurses;
+
   meta = with lib; {
     homepage = "https://github.com/gildor478/ounit";
     description = "A unit test framework for OCaml";