diff --git a/pkgs/data/themes/shades-of-gray/default.nix b/pkgs/data/themes/shades-of-gray/default.nix
index 171f7010897e..718fb2b5d4ca 100644
--- a/pkgs/data/themes/shades-of-gray/default.nix
+++ b/pkgs/data/themes/shades-of-gray/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "shades-of-gray-theme";
-  version = "1.2.1";
+  version = "1.3.0";
 
   src = fetchFromGitHub {
     owner = "WernerFP";
     repo = pname;
     rev = version;
-    sha256 = "153isyxly7nvivaz87zk2v1bqzcb3wk0j9vhgxzcz6qkf754q61s";
+    sha256 = "13ydym0i3032g5dyrnl5wxpvxv57b43q7iaq5achpmaixgn58gs8";
   };
 
   buildInputs = [ gtk_engines ];