diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 4866193..5f24502 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index 3049ba6..1bf0c74 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -14,7 +14,7 @@ jobs:
         python: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
@@ -41,7 +41,7 @@ jobs:
         - unit
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Setup Python
       uses: actions/setup-python@v5
       with: