diff --git a/Gemfile.lock b/Gemfile.lock
index 016f2fb31a..70059e66de 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -480,7 +480,7 @@ GEM
     thor (1.2.1)
     tilt (2.0.10)
     timeout (0.3.0)
-    tzinfo (2.0.4)
+    tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)