diff --git a/.github/workflows/build-and-run-model.yaml b/.github/workflows/build-and-run-model.yaml
index 43898e29..ed18c447 100644
--- a/.github/workflows/build-and-run-model.yaml
+++ b/.github/workflows/build-and-run-model.yaml
@@ -33,9 +33,6 @@ jobs:
       vcpu: "16.0"
       memory: "65536"
       role-duration-seconds: 14400  # Worst-case time for a full model run
-      container-env-vars: |
-        FOO=foo
-        BAR=bar
     secrets:
       AWS_IAM_ROLE_TO_ASSUME_ARN: ${{ secrets.AWS_IAM_ROLE_TO_ASSUME_ARN }}
       AWS_ACCOUNT_ID: ${{ secrets.AWS_ACCOUNT_ID }}