diff --git a/Gemfile.lock b/Gemfile.lock
index 83a065a..7804ffd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,4 +31,4 @@ DEPENDENCIES
   rspec (~> 3.0)
 
 BUNDLED WITH
-   2.1.4
+   2.4.0.dev