diff --git a/Gemfile.lock b/Gemfile.lock
index 29ca4e16f..253c71477 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -610,7 +610,7 @@ GEM
       activesupport (= 4.2.5.1)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rainbow (2.0.0)
+    rainbow (2.1.0)
     raindrops (0.15.0)
     rake (10.5.0)
     rb-fsevent (0.9.7)