diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 81c693b..6c2f041 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
       - name: Use Node.js ${{ matrix.node }}
         uses: actions/setup-node@v2.1.5
         with:
@@ -30,7 +30,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
       - name: Use Node.js ${{ matrix.node }}
         uses: actions/setup-node@v2.1.5
         with: