diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 75ce28f5..1064e94c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkhout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
@@ -36,7 +36,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Checkhout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Python 3.9
         uses: actions/setup-python@v4
         with:
@@ -64,7 +64,7 @@ jobs:
     continue-on-error: ${{ matrix.experimental }}
     steps:
       - name: Checkhout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Python ${{ matrix.pyver }}
         uses: actions/setup-python@v4
         with:
@@ -106,7 +106,7 @@ jobs:
     if: github.event_name == 'push' && contains(github.ref, 'refs/tags/')
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 9c76fd32..83082408 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v2