diff --git a/.github/workflows/deploy_sap_model_lambda.yml b/.github/workflows/deploy_sap_model_lambda.yml
index 113a3ecf..f8b8fde3 100644
--- a/.github/workflows/deploy_sap_model_lambda.yml
+++ b/.github/workflows/deploy_sap_model_lambda.yml
@@ -55,6 +55,7 @@ jobs:
         uses: docker/build-push-action@v4
         with:
           context: ./model_data/simulation_system
+          file: Dockerfiles/Dockerfile.prediction.lambda
           push: true
           tags: ${{ steps.set_ecr_credentials.outputs.ecr_uri }}:${{ github.sha }}
           cache-from: type=gha