diff --git a/.github/workflows/data-update.yml b/.github/workflows/data-update.yml
index cb249b65..4d3a8e1c 100644
--- a/.github/workflows/data-update.yml
+++ b/.github/workflows/data-update.yml
@@ -4,6 +4,9 @@ on:
     - cron: "05 06 1 * *"
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   updateData:
     name: Update data - ${{ matrix.fetch }}
diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index ae3812db..c75f86df 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: ["master"]
 
+permissions:
+  contents: read
+
 jobs:
   python:
     name: Python ${{ matrix.python-version }}
@@ -73,6 +76,8 @@ jobs:
       run: make V=1 themes.all
 
   documentation:
+    permissions:
+      contents: write  # for JamesIves/github-pages-deploy-action to push changes in repo
     name: Documentation
     runs-on: ubuntu-20.04
     steps: