diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index f8021f2..d67335b 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/mypy.yml b/.github/workflows/mypy.yml
index bc8b4f7..810bf5d 100644
--- a/.github/workflows/mypy.yml
+++ b/.github/workflows/mypy.yml
@@ -16,7 +16,7 @@ jobs:
     name: Python ${{ matrix.python-version }} sample
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/test_api.yml b/.github/workflows/test_api.yml
index cf0a1f0..d3b3ee4 100644
--- a/.github/workflows/test_api.yml
+++ b/.github/workflows/test_api.yml
@@ -16,7 +16,7 @@ jobs:
     name: Python ${{ matrix.python-version }} sample
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with: