diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 787a0512..d52138bd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
 
       - name: Shellcheck
         uses: reviewdog/action-shellcheck@v1
diff --git a/.github/workflows/terraform-apply.yml b/.github/workflows/terraform-apply.yml
index a3be0002..2c6bdf26 100644
--- a/.github/workflows/terraform-apply.yml
+++ b/.github/workflows/terraform-apply.yml
@@ -21,7 +21,7 @@ jobs:
     steps:
     - name: checkout
       id: checkout_code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
       with:
diff --git a/.github/workflows/terraform-plan.yml b/.github/workflows/terraform-plan.yml
index 0ad9e622..a2ba034f 100644
--- a/.github/workflows/terraform-plan.yml
+++ b/.github/workflows/terraform-plan.yml
@@ -19,7 +19,7 @@ jobs:
     steps:
     - name: checkout
       id: checkout_code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
       with: