diff --git a/.hydra/declarative-jobsets.nix b/.hydra/declarative-jobsets.nix
index a2f7a8bf..0299362c 100644
--- a/.hydra/declarative-jobsets.nix
+++ b/.hydra/declarative-jobsets.nix
@@ -14,13 +14,8 @@ let
     emailoverride = "";
     keepnr = 1;
     type = 1;
-    flake = "${info.head.repo.html_url}/archive/${info.head.ref}.tar.gz";
+    flake = "${info.head.repo.html_url}/archive/${info.head.sha}.tar.gz";
     inputs = {
-      git_repo = {
-        type = "git";
-        value = "${info.head.repo.html_url} ${info.head.ref}";
-      emailresponsible= false;
-      };
       gitea_repo_name = {
         type = "string";
         value = "${info.head.repo.name}";