diff --git a/.circleci/config.yml b/.circleci/config.yml
index 368707b7..1a1a5fa5 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,8 @@ version: 2
 
 jobs:
     build_and_test:
-        image: php:7.1
+        docker:
+            image: php:7.1
         steps:
             - checkout
             - run: ./vendor/bin/phpunit