diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index eb59794..fa6c28d 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -18,7 +18,7 @@ jobs:
         python-version: [3.8]
 
     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/unit-test.yml b/.github/workflows/unit-test.yml
index 3ea8959..3d95959 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -18,7 +18,7 @@ jobs:
         python-version: [3.8, 3.9, "3.10", 3.11, 3.12]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with: