diff --git a/.github/workflows/build-0.4.x.x.yml b/.github/workflows/build-0.4.x.x.yml
index f0a35f1..acf76ed 100644
--- a/.github/workflows/build-0.4.x.x.yml
+++ b/.github/workflows/build-0.4.x.x.yml
@@ -18,7 +18,7 @@ jobs:
         python_version: ['3.7', '3.8', '3.9', '3.10']
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Setup Python ${{matrix.python_version}}
       uses: actions/setup-python@v2
       with:
@@ -45,7 +45,7 @@ jobs:
         uses: actions/setup-node@v2-beta
         with:
           node-version: 11.x
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install npm dependencies
         run: |
           pushd ext-res/tests
@@ -74,7 +74,7 @@ jobs:
       failure_rate_python_3_10: ${{steps.pytest.outputs.failure_rate_3_10}}
     needs: [build, turn-on-env]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Setup Python ${{matrix.python_version}}
       uses: actions/setup-python@v2
       with:
@@ -157,7 +157,7 @@ jobs:
         uses: actions/setup-node@v2-beta
         with:
           node-version: 11.x
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install npm dependencies
         run: |
           pushd ext-res/tests
@@ -218,7 +218,7 @@ jobs:
     needs: [release_checks]
     if: ${{ success() }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Setup Python 3.10
         uses: actions/setup-python@v2
         with:
diff --git a/.github/workflows/build-dev.yml b/.github/workflows/build-dev.yml
index e68c3c7..699fa3c 100644
--- a/.github/workflows/build-dev.yml
+++ b/.github/workflows/build-dev.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Setup Python 3.9
       uses: actions/setup-python@v2
       with:
@@ -58,7 +58,7 @@ jobs:
     outputs:
       failure_rate: ${{steps.pytest.outputs.failure_rate}}
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Setup Python 3.9
       uses: actions/setup-python@v2
       with:
@@ -143,7 +143,7 @@ jobs:
     # Only publish release if the failure rate is < 10 %
     if: needs.test.outputs.failure_rate < 10
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Calculate Version
       id: tag
       run: |
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 25622de..3bfa820 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -13,7 +13,7 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.7
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - uses: ammaraskar/sphinx-action@master
         with:
           docs-folder: "docs/"