diff --git a/.circleci/config.yml b/.circleci/config.yml
index 58cee7d..92c55bd 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,6 +6,7 @@ jobs:
     steps:
       - checkout
       - run: npm install
+      - run: npm install -g istanbul
       - run: npm run clean
       - run: npm run coverage
       - run: npm run clean