diff --git a/.github/workflows/terraform-plan.yaml b/.github/workflows/terraform-plan.yaml
index 1e87682..a61562d 100644
--- a/.github/workflows/terraform-plan.yaml
+++ b/.github/workflows/terraform-plan.yaml
@@ -17,7 +17,7 @@ jobs:
     env:
       AWS_SECRET_ACCESS_KEY: "${{ secrets.AWS_SECRET_ACCESS_KEY }}"
       AWS_ACCESS_KEY_ID: "${{ vars.AWS_ACCESS_KEY_ID }}"
-      AWS_SESSION_TOKEN: "${{ secrets.AWS_SESSION_TOKEN }}"
+      AWS_DEFAULT_REGION: "${{ vars.AWS_DEFAULT_REGION }}"
       
 
     # Steps represent a sequence of tasks that will be executed as part of the job