diff --git a/circle.yml b/circle.yml
index 9d07c04af4..87c7cba4cd 100644
--- a/circle.yml
+++ b/circle.yml
@@ -14,4 +14,4 @@ test:
     - npm run lint
     - scss-lint
     - python -u runtests.py
-    - npm run test:unit:coverage
+    - npm run test:unit:coverage -- --runInBand