diff --git a/pkgs/desktops/mate/mate-themes/default.nix b/pkgs/desktops/mate/mate-themes/default.nix
index 5bb7424dc6b3..343148da0bc8 100644
--- a/pkgs/desktops/mate/mate-themes/default.nix
+++ b/pkgs/desktops/mate/mate-themes/default.nix
@@ -6,15 +6,17 @@ stdenv.mkDerivation rec {
   version = "${major-ver}.${minor-ver}";
   major-ver = gnome3.version;
   minor-ver = {
-    "3.18" = "3";
-    "3.20" = "10";
+    "3.18" = "4";
+    "3.20" = "12";
+    "3.22" = "3";
   }."${major-ver}";
 
   src = fetchurl {
     url = "http://pub.mate-desktop.org/releases/themes/${major-ver}/${name}.tar.xz";
     sha256 = {
-      "3.18" = "09vglvjnjnm95wxw5b7pn6rf5xrr3nfyqs5c3y1c72z4p3w8qqn5";
-      "3.20" = "0bhhidip8qbsq69a9n0dmxfryhvzngiy59vnms6xhya9n7y19hci";
+      "3.18" = "1h3z705jrg7gng5glf51ksszjz6v81qq83qvmfpv1v69bwn6fy4b";
+      "3.20" = "15s2xp2cq9x8iikvbywr5gl8l33i57i1xvbv4jc2qipnkn3c4yca";
+      "3.22" = "0p1rf5q2nr1vsab3pljwycclbrnwylvp88d0dhk8as0d6n6fp85k";
     }."${major-ver}";
   };