diff --git a/.github/workflows/static_analysis.yml b/.github/workflows/static_analysis.yml
index 20e85ea..1c4678d 100644
--- a/.github/workflows/static_analysis.yml
+++ b/.github/workflows/static_analysis.yml
@@ -15,19 +15,19 @@ jobs:
 
     steps:
       - name: ⚡ Checkout code
-        uses: actions/checkout@v4.1.1
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: 📖 Read Terraform version
         run: |
           echo "TERRAFORM_VERSION=$(cat .terraform-version)" >> $GITHUB_ENV
 
       - name: 🔨 Setup Terraform
-        uses: hashicorp/setup-terraform@v3.1.0
+        uses: hashicorp/setup-terraform@97f030cf6dc0b4f5e0da352c7bca9cca34579800 # v3.1.0
         with:
           terraform_version: "${{ env.TERRAFORM_VERSION }}"
 
       - name: 💾 Cache Terraform plugins
-        uses: actions/cache@v4
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
         with:
           path: $TF_PLUGIN_CACHE_DIR
           key: ${{ runner.os }}-terraform-${{ env.TERRAFORM_VERSION }}-${{ hashFiles('**/.terraform.lock.hcl') }}