diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..fc9f855
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,7 @@
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"      # Location of your workflow files
+    schedule:
+      interval: "weekly"  # Options: daily, weekly, monthly
diff --git a/.github/workflows/circleupload.yaml b/.github/workflows/circleupload.yaml
index b9ad42f..3983203 100644
--- a/.github/workflows/circleupload.yaml
+++ b/.github/workflows/circleupload.yaml
@@ -1,11 +1,15 @@
 on: [status]
 jobs:
   circleci_artifacts_redirector_job:
+    permissions:
+      contents: read
+      checks: write
+      pull-requests: write
     runs-on: ubuntu-latest
     name: Run CircleCI artifacts redirector
     steps:
       - name: GitHub Action step
-        uses: larsoner/circleci-artifacts-redirector-action@master
+        uses: scientific-python/circleci-artifacts-redirector-action@7eafdb60666f57706a5525a2f5eb76224dc8779b  # v1.1.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           api-token: ${{ secrets.CIRCLECI_TOKEN }}
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 16d1b35..99f7da1 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -25,6 +25,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          persist-credentials: false
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 1184ce5..a7d5e43 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -5,8 +5,13 @@ on: [push, pull_request]
 jobs:
   build:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: Install Python dependencies
         run: pip install -r requirements.txt
       - name: Build
@@ -15,7 +20,7 @@ jobs:
         run: rm ./docs/_build/html/objects.inv
       - name: Publish
         if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
-        uses: peaceiris/actions-gh-pages@v4
+        uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4.0.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./docs/_build/html