diff --git a/pkgs/by-name/co/cosmic-session/package.nix b/pkgs/by-name/co/cosmic-session/package.nix
index f2a174192055..4e6a1a8f9670 100644
--- a/pkgs/by-name/co/cosmic-session/package.nix
+++ b/pkgs/by-name/co/cosmic-session/package.nix
@@ -7,6 +7,7 @@
   dbus,
   stdenv,
   nixosTests,
+  nix-update-script,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
@@ -60,6 +61,14 @@ rustPlatform.buildRustPackage (finalAttrs: {
         cosmic-autologin-noxwayland
         ;
     };
+    updateScript = nix-update-script {
+      extraArgs = [
+        "--version"
+        "unstable"
+        "--version-regex"
+        "epoch-(.*)"
+      ];
+    };
   };
 
   meta = {