diff --git a/pkgs/by-name/sm/sm64coopdx/package.nix b/pkgs/by-name/sm/sm64coopdx/package.nix
index 542048170496..f360d9b6da5b 100644
--- a/pkgs/by-name/sm/sm64coopdx/package.nix
+++ b/pkgs/by-name/sm/sm64coopdx/package.nix
@@ -37,13 +37,13 @@ in
 # note: there is a generic builder in pkgs/games/sm64ex/generic.nix that is meant to help build sm64ex and its forks; however sm64coopdx has departed significantly enough in its build that it doesn't make sense to use that other than the baseRom derivation
 stdenv.mkDerivation (finalAttrs: {
   pname = "sm64coopdx";
-  version = "1.3.2";
+  version = "1.4";
 
   src = fetchFromGitHub {
     owner = "coop-deluxe";
     repo = "sm64coopdx";
-    rev = "v1.3.2";
-    hash = "sha256-FHH3+pGowkT8asDmU9qxPNDKy4VPKlkA0X7e4gnX9KY=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-ct7X6LCitk1QID00guvYOMfIwnZccMeXqXwUB3ioKh8=";
   };
 
   patches = [ ./no-update-check.patch ];