diff --git a/pkgs/desktops/gnome-3/3.20/core/mutter/src.nix b/pkgs/desktops/gnome-3/3.20/core/mutter/src.nix
index 47acaa6b58e5..89f05f8ed1b2 100644
--- a/pkgs/desktops/gnome-3/3.20/core/mutter/src.nix
+++ b/pkgs/desktops/gnome-3/3.20/core/mutter/src.nix
@@ -1,10 +1,10 @@
 # Autogenerated by maintainers/scripts/gnome.sh update
 
 fetchurl: {
-  name = "mutter-3.20.2";
+  name = "mutter-3.20.3";
 
   src = fetchurl {
-    url = mirror://gnome/sources/mutter/3.20/mutter-3.20.2.tar.xz;
-    sha256 = "1e8c46a81e21f382f56729282fcd0bb1c3a2067135f4b0f3651b307bf7a5b454";
+    url = mirror://gnome/sources/mutter/3.20/mutter-3.20.3.tar.xz;
+    sha256 = "142c5271df4bde968c725ed09026173292c07b4dd7ba75f19c4b14fc363af916";
   };
 }