diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
index 0efa5f2..fbb8bb4 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up Python
       uses: actions/setup-python@v4