diff --git a/.github/workflows/terraform_plan.yaml b/.github/workflows/terraform_plan.yaml
index c62c20d..8e14d66 100644
--- a/.github/workflows/terraform_plan.yaml
+++ b/.github/workflows/terraform_plan.yaml
@@ -87,6 +87,7 @@ jobs:
           varfile: varfiles/${{ vars.terraform_workspace }}.tfvars
           download_cache: true
           setup_terraform: false
+          cache_key: ${{ steps.terraform_init.outputs.s3_upload_path }}
         env:
           AWS_ACCESS_KEY_ID: ${{ steps.aws_auth.outputs.aws_access_key_id }}
           AWS_SECRET_ACCESS_KEY: $${{ steps.aws_auth.outputs.aws_secret_access_key }}