diff --git a/.github/workflows/apply.yaml b/.github/workflows/apply.yaml
index fd1b086..ad5bbdb 100644
--- a/.github/workflows/apply.yaml
+++ b/.github/workflows/apply.yaml
@@ -7,7 +7,7 @@ jobs:
     name: 'Terraform Apply'
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
     - uses: hashicorp/setup-terraform@v3
 
     - name: Terraform fmt
diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 4c05873..1ba1f94 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -9,7 +9,7 @@ jobs:
     name: 'Terraform Plan'
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
     - uses: hashicorp/setup-terraform@v3
 
     - name: Terraform fmt