diff --git a/pkgs/by-name/xd/xdg-desktop-portal-cosmic/package.nix b/pkgs/by-name/xd/xdg-desktop-portal-cosmic/package.nix
index 8c640acd7f55..d01567042041 100644
--- a/pkgs/by-name/xd/xdg-desktop-portal-cosmic/package.nix
+++ b/pkgs/by-name/xd/xdg-desktop-portal-cosmic/package.nix
@@ -13,20 +13,20 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "xdg-desktop-portal-cosmic";
-  version = "1.0.0-alpha.3";
+  version = "1.0.0-alpha.4";
 
   src = fetchFromGitHub {
     owner = "pop-os";
     repo = "xdg-desktop-portal-cosmic";
     rev = "epoch-${version}";
-    hash = "sha256-IlMcgzhli61QWjdovj5BpOxOebV3RytBeHPhxzWNXqg=";
+    hash = "sha256-4FdgavjxRKbU5/WBw9lcpWYLxCH6IJr7LaGkEXYUGbw=";
   };
 
   env.VERGEN_GIT_COMMIT_DATE = "2024-10-10";
   env.VERGEN_GIT_SHA = src.rev;
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-z1vySlaAFW0stxzJ4n5jzyDFDDiN07l9lUT5jLyJnco=";
+  cargoHash = "sha256-FgfUkU9sv5mq4+pou2myQn6+DkLzPacjUhQ4pL8hntM=";
 
   separateDebugInfo = true;