diff --git a/pkgs/data/themes/flat-remix-gtk/default.nix b/pkgs/data/themes/flat-remix-gtk/default.nix
index afdf478fea03..722c3cbc41e5 100644
--- a/pkgs/data/themes/flat-remix-gtk/default.nix
+++ b/pkgs/data/themes/flat-remix-gtk/default.nix
@@ -6,13 +6,13 @@
 
 stdenv.mkDerivation rec {
   pname = "flat-remix-gtk";
-  version = "20201129";
+  version = "20211130";
 
   src = fetchFromGitHub {
     owner = "daniruiz";
     repo = pname;
     rev = version;
-    hash = "sha256-lAlHRVB/P3A1qWsXQZPZ3uhgctR4FLa+ocUrsbleXJU=";
+    sha256 = "0n6djx346bzk558yd9nk0r6hqszcbkj0h1pv2n8n15ps2j9lyvw8";
   };
 
   dontBuild = true;