diff --git a/pkgs/development/libraries/mlt/default.nix b/pkgs/development/libraries/mlt/default.nix
index 6eee8df5a23e..59700669ba7c 100644
--- a/pkgs/development/libraries/mlt/default.nix
+++ b/pkgs/development/libraries/mlt/default.nix
@@ -6,28 +6,15 @@
 
 stdenv.mkDerivation rec {
   name = "mlt-${version}";
-  version = "6.4.1";
+  version = "6.6.0";
 
   src = fetchFromGitHub {
     owner = "mltframework";
     repo = "mlt";
     rev = "v${version}";
-    sha256 = "0k9vj21n6qxdjd0vvj22cwi35igajjzh5fbjza766izdbijv2i2w";
+    sha256 = "0b2fq0819r7n141l6hhr66hpayqqcmjr2yxw9azxkapg1h0div6q";
   };
 
-  patches = [
-    # fix for glibc-2.26
-    (fetchurl {
-      url = "https://github.com/mltframework/mlt/commit/2125e3955a0d0be61571cf43b674f74b4b93c6f8.patch";
-      sha256 = "1bgs5a3dblsmdmb7hwval9nmq1as4r4f48b3amsc23v69nsl2g0a";
-    })
-    # fix for glibc-2.26
-    (fetchurl {
-      url = "https://github.com/mltframework/mlt/commit/fbf6a5187776f2f392cf258935ff49e4c0e87024.patch";
-      sha256 = "045vchpcznzsz47j67kxwdbg133kar66ssna3parnzrxdfqi72pv";
-    })
-  ];
-
   buildInputs = [
     SDL ffmpeg frei0r libjack2 libdv libsamplerate libvorbis libxml2
     makeWrapper movit pkgconfig sox
diff --git a/pkgs/development/libraries/mlt/qt-5.nix b/pkgs/development/libraries/mlt/qt-5.nix
index 7111a78381d1..27f7cf31cbf2 100644
--- a/pkgs/development/libraries/mlt/qt-5.nix
+++ b/pkgs/development/libraries/mlt/qt-5.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, SDL, ffmpeg, frei0r, libjack2, libdv, libsamplerate
+{ stdenv, fetchFromGitHub, SDL, ffmpeg, frei0r, libjack2, libdv, libsamplerate
 , libvorbis, libxml2, makeWrapper, movit, pkgconfig, sox, qtbase, qtsvg
 , fftw, vid-stab, opencv3, ladspa-sdk
 }:
@@ -7,24 +7,14 @@ let inherit (stdenv.lib) getDev; in
 
 stdenv.mkDerivation rec {
   name = "mlt-${version}";
-  version = "6.4.1";
+  version = "6.6.0";
 
-  src = fetchurl {
-    url = "https://github.com/mltframework/mlt/archive/v${version}.tar.gz";
-    sha256 = "10m3ry0b2pvqx3bk34qh5dq337nn8pkc2gzfyhsj4nv9abskln47";
+  src = fetchFromGitHub {
+    owner = "mltframework";
+    repo = "mlt";
+    rev = "v${version}";
+    sha256 = "0b2fq0819r7n141l6hhr66hpayqqcmjr2yxw9azxkapg1h0div6q";
   };
-  patches = [
-    # fix for glibc-2.26
-    (fetchurl {
-      url = "https://github.com/mltframework/mlt/commit/2125e3955a0d0be61571cf43b674f74b4b93c6f8.patch";
-      sha256 = "1bgs5a3dblsmdmb7hwval9nmq1as4r4f48b3amsc23v69nsl2g0a";
-    })
-    # fix for glibc-2.26
-    (fetchurl {
-      url = "https://github.com/mltframework/mlt/commit/fbf6a5187776f2f392cf258935ff49e4c0e87024.patch";
-      sha256 = "045vchpcznzsz47j67kxwdbg133kar66ssna3parnzrxdfqi72pv";
-    })
-  ];
 
   buildInputs = [
     SDL ffmpeg frei0r libjack2 libdv libsamplerate libvorbis libxml2