diff --git a/ci-tools/update-nixpkgs b/ci-tools/update-nixpkgs
index 3a446af6fbf65ea7ee93aa6870088ce4a2c23f28..3cb23dc45e71d4ad5ca45c595fb3600df500a2c2 100755
--- a/ci-tools/update-nixpkgs
+++ b/ci-tools/update-nixpkgs
@@ -75,4 +75,4 @@ BODY=$(cat <<EOF
 EOF
     )
 
-curl -X POST --data "${BODY}" --header "Content-Type: application/json" --header "PRIVATE-TOKEN: ${UPDATE_NIXPKGS_PRIVATE_TOKEN}" "https://${HOST}/api/v4/projects/merge_requests"
+curl -X POST --data "${BODY}" --header "Content-Type: application/json" --header "PRIVATE-TOKEN: ${UPDATE_NIXPKGS_PRIVATE_TOKEN}" "https://${HOST}/api/v4/projects/${CI_PROJECT_ID}/merge_requests"