diff --git a/.github/workflows/publish-chkit-py.yml b/.github/workflows/publish-chkit-py.yml
index b713a29e..cb7c8a42 100644
--- a/.github/workflows/publish-chkit-py.yml
+++ b/.github/workflows/publish-chkit-py.yml
@@ -9,6 +9,11 @@ on:
     tags:
       - "chkit-py-v*"
 
+# Minimal default for every job; the publish job overrides with the
+# id-token permission OIDC needs.
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest