diff --git a/.circleci/config.yml b/.circleci/config.yml
index 8e190685..9615ec3c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -17,7 +17,7 @@ jobs:
       - run:
           name: Upload Coverage
           when: on_success
-          command: bash <(curl -s https://codecov.io/bash)
+          command: bash <(curl -s https://codecov.io/bash) -Z -C $CIRCLE_SHA1
       - save_cache:
           paths:
             - ~/.m2