diff --git a/.github/workflows/basictests.yml b/.github/workflows/basictests.yml
index 6a82994..da3a0ab 100644
--- a/.github/workflows/basictests.yml
+++ b/.github/workflows/basictests.yml
@@ -17,7 +17,7 @@ jobs:
     env:
       GITHUB_OS: linux
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
@@ -48,7 +48,7 @@ jobs:
     env:
       GITHUB_OS: macos
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
@@ -69,7 +69,7 @@ jobs:
     env:
       GITHUB_OS: windows
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 80eb45d..19bfb6a 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -13,7 +13,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.
diff --git a/.github/workflows/create-release.yaml b/.github/workflows/create-release.yaml
index b5dd385..8bf8e4f 100644
--- a/.github/workflows/create-release.yaml
+++ b/.github/workflows/create-release.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Check if it is 'NOT RELEASED'
         shell: bash
         run: |