diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 84b5b12..6eb26d3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Install Node.js, NPM and Yarn
         uses: actions/setup-node@v3
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c28875b..531a56a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Install Node.js, NPM and Yarn
         uses: actions/setup-node@v3