diff --git a/pkgs/servers/mautrix-googlechat/default.nix b/pkgs/servers/mautrix-googlechat/default.nix
index b522dc0636f6..41a72eec0595 100644
--- a/pkgs/servers/mautrix-googlechat/default.nix
+++ b/pkgs/servers/mautrix-googlechat/default.nix
@@ -7,13 +7,13 @@
 , enableSqlite ? true
 }: python3.pkgs.buildPythonApplication rec {
   pname = "mautrix-googlechat";
-  version = "unstable-2023-07-16";
+  version = "0.5.1";
 
   src = fetchFromGitHub {
     owner = "mautrix";
     repo = "googlechat";
-    rev = "f4cddafd474b12be09efd15c6652c04d0650458e";
-    sha256 = "sha256-WMJVAX5oUdYYuXoJKk7OoERR0LJM0Er5444xwqIUTm8=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-a/EWz/aCkBE6XdDpmZcx2Q7/xKNwGCiZUhZc9YIIDhU=";
   };
 
   patches = [