diff --git a/pkgs/development/libraries/gtk+/3.x.nix b/pkgs/development/libraries/gtk+/3.x.nix
index 4c377c735717..e9c93660bf79 100644
--- a/pkgs/development/libraries/gtk+/3.x.nix
+++ b/pkgs/development/libraries/gtk+/3.x.nix
@@ -13,7 +13,7 @@ with stdenv.lib;
 
 let
   ver_maj = "3.22";
-  ver_min = "26";
+  ver_min = "28";
   version = "${ver_maj}.${ver_min}";
 in
 stdenv.mkDerivation rec {
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "mirror://gnome/sources/gtk+/${ver_maj}/gtk+-${version}.tar.xz";
-    sha256 = "61eef0d320e541976e2dfe445729f12b5ade53050ee9de6184235cb60cd4b967";
+    sha256 = "d299612b018cfed7b2c689168ab52b668023708e17c335eb592260d186f15e1f";
   };
 
   outputs = [ "out" "dev" ];