diff --git a/.github/workflows/fetch-openapi-spec.yml b/.github/workflows/fetch-openapi-spec.yml
index d9e18e6f..7a032058 100644
--- a/.github/workflows/fetch-openapi-spec.yml
+++ b/.github/workflows/fetch-openapi-spec.yml
@@ -11,7 +11,7 @@ on:
 
 jobs:
   fetch-openapi-spec:
-    runs-on: ubuntu-latest
+    runs-on: ["os:ubuntu", "purpose:ci"]
     permissions:
       contents: write # to create a branch and push changes
       pull-requests: write # to create a PR