diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index af0d6ab..50e9ff8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
     steps:
 
       - name: Checkout Code Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
 
       - name: Set up Python 3.9
         uses: actions/setup-python@v2
@@ -53,7 +53,7 @@ jobs:
     steps:
 
       - name: Checkout Code Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
 
       - name: Set up Python 3.9
         uses: actions/setup-python@v2