diff --git a/.github/workflows/changelog.yml b/.github/workflows/changelog.yml
index 82baaae4..37160189 100644
--- a/.github/workflows/changelog.yml
+++ b/.github/workflows/changelog.yml
@@ -12,7 +12,7 @@ jobs:
     continue-on-error: true
     if: github.actor != 'github-actions[bot]' || github.event.pusher.email != 'github-actions[bot]@users.noreply.github.com'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           token: ${{ secrets.GH_PAT }}
           fetch-depth: 0
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 40bef8a7..e2de00fc 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -42,7 +42,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup environment.
         uses: ./.github/actions/setup-micropy
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index cea87f38..540f4514 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -32,7 +32,7 @@ jobs:
         python: ["3.9", "3.10", "3.11"]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
 
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index df802a38..56698680 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -14,7 +14,7 @@ jobs:
     name: Publish
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true