diff --git a/.github/workflows/terraform.yml b/.github/workflows/terraform.yml
index 6ea72af..9a15b5b 100644
--- a/.github/workflows/terraform.yml
+++ b/.github/workflows/terraform.yml
@@ -17,7 +17,7 @@ jobs:
   terraform-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: Terraform Format
         uses: hashicorp/terraform-github-actions@v0.8.0