diff --git a/.github/workflows/Build.yml b/.github/workflows/Build.yml
index 40534326..9b770922 100644
--- a/.github/workflows/Build.yml
+++ b/.github/workflows/Build.yml
@@ -96,7 +96,7 @@ jobs:
           ROLE_NAME: ${{ secrets.ROLE_NAME }}
           REGION_NAME: ${{ secrets.TERRAFORM_REGION }}
           TAG_NAME: ${{ secrets.TAG_NAME }}
-          SUBNET_ID: ${{ SUBNET_ID }}
+          SUBNET_ID: ${{ secrets.SUBNET_ID }}
         run: |
           cd terraform/aws_instance
           # terrafrom apply
diff --git a/.github/workflows/PR.yml b/.github/workflows/PR.yml
index 293d5de7..a1d83597 100644
--- a/.github/workflows/PR.yml
+++ b/.github/workflows/PR.yml
@@ -100,7 +100,7 @@ jobs:
           ROLE_NAME: ${{ secrets.ROLE_NAME }}
           REGION_NAME: ${{ secrets.TERRAFORM_REGION }}
           TAG_NAME: ${{ secrets.TAG_NAME }}
-          SUBNET_ID: ${{ SUBNET_ID }}
+          SUBNET_ID: ${{ secrets.SUBNET_ID }}
         run: |
           cd terraform/aws_instance
           # terrafrom apply