diff --git a/Gemfile.lock b/Gemfile.lock
index e1ebaea..9bcd76d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,4 +40,4 @@ DEPENDENCIES
   simplecov (~> 0.21)
 
 BUNDLED WITH
-   2.1.4
+   2.4.1