Maybe... This modification works.

```
diff --git a/circle.yml b/circle.yml
index 23496e4..ff557fb 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,6 +1,6 @@
 dependencies:
-  override:
-    - rake init
+  post:
+    - bundle exec rake init

 test:
   override:
```