diff --git a/.circleci/config.yml b/.circleci/config.yml
index 706c0f0..1d12a60 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -15,12 +15,14 @@ jobs:
           - v1-dependencies-
 
       - run: yarn install
-
+      
       - save_cache:
           paths:
             - node_modules
           key: v1-dependencies-{{ checksum "package.json" }}
 
+      - run: yarn add ava --dev # for testing
+      
       # Run tests
       - run: yarn test
       - run: yarn build