diff --git a/.github/workflows/test-core.yml b/.github/workflows/test-core.yml
index 1a458b72b039..e5b9afcf86e0 100644
--- a/.github/workflows/test-core.yml
+++ b/.github/workflows/test-core.yml
@@ -23,7 +23,11 @@ jobs:
   all:
     name: Units + Features
     if: github.repository == 'opf/openproject'
-    runs-on: runs-on,runner=32cpu-linux-x64,run-id=${{ github.run_id }}
+    runs-on:
+      labels:
+        - runs-on
+        - runner=32cpu-linux-x64
+        - run-id=${{ github.run_id }}
     timeout-minutes: 40
     env:
       DOCKER_BUILDKIT: 1