diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 5d0786d4..fb4a8c8b 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: iterate-ch/sphinx-action@v1.0
         with:
           docs-folder: "."
@@ -32,7 +32,7 @@ jobs:
     needs: build
     if: github.ref == 'refs/heads/main'
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Cache artifacts
         uses: actions/cache@v4
         with:
diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index 3ebbf550..22cdd283 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -17,6 +17,6 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Codespell
         uses: codespell-project/actions-codespell@v2