diff --git a/circle.yml b/circle.yml
index 15c9a17e9..453f2217e 100644
--- a/circle.yml
+++ b/circle.yml
@@ -3,6 +3,7 @@ machine:
     version: 6.0.0
 dependencies:
   pre:
+    - "npm i"
     - "npm i -g testem"
     - "npm i -g mocha"
   override: