diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index bd82d189e8..51942f5c18 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -6,9 +6,14 @@ on:
       - master
       - v4.0
 
+permissions:
+  contents: read
+
 jobs:
   documentation:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write   # required to push generated docs to gh-pages
     steps:
       - uses: actions/checkout@v4
         with: