diff --git a/pkgs/games/native/celeste-classic.nix b/pkgs/games/native/celeste-classic.nix
index dc4c529..94ab9fc 100644
--- a/pkgs/games/native/celeste-classic.nix
+++ b/pkgs/games/native/celeste-classic.nix
@@ -13,10 +13,11 @@ let
 in
 stdenvNoCC.mkDerivation {
   pname = outbin;
-  version = "1.0";
+  version = "unstable-2020-12-08";
 
+  # From https://www.speedrun.com/celestep8/resources
   src = fetchzip {
-    url = "https://www.speedrun.com/static/resource/174ye.zip";
+    url = "https://www.speedrun.com/static/resource/174ye.zip?v=f3dc98f";
     hash = "sha256-GANHqKB0N905QJOLaePKWkUuPl9UlL1iqvkMMvw/CC8=";
   };