diff --git a/.circleci/config.yml b/.circleci/config.yml
index d59c8d51..08e65bab 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,6 +6,7 @@ jobs:
             - image: php:7.1
         steps:
             - checkout
+            - run: composer install
             - run: ./vendor/bin/phpunit
 
 workflows: