specify docker image

chrisbreiding · chrisbreiding · commit 8690053175a7 · 2018-08-15T11:50:10.000-04:00
diff --git a/circle.yml b/circle.yml
@@ -8,6 +8,9 @@ workflows:
 
 jobs:
   test:
+    docker:
+      - image: circleci/node:8
+
     steps:
       - checkout
 
