diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 8e95ecef..096f1f1e 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -15,7 +15,7 @@ jobs:
           EOF
 
       - name: Check out repository code
-        uses: actions/checkout@v3.6.0
+        uses: actions/checkout@v4.0.0
 
       - name: Install Golang
         uses: actions/setup-go@v4.1.0
diff --git a/.github/workflows/master-build.yaml b/.github/workflows/master-build.yaml
index 41a28fac..30885387 100644
--- a/.github/workflows/master-build.yaml
+++ b/.github/workflows/master-build.yaml
@@ -19,7 +19,7 @@ jobs:
           EOF
 
       - name: Check out repository code
-        uses: actions/checkout@v3.6.0
+        uses: actions/checkout@v4.0.0
 
       - name: Install Golang
         uses: actions/setup-go@v4.1.0