diff --git a/Gemfile.lock b/Gemfile.lock
index a972054ced6..b99aa6f1919 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -117,7 +117,7 @@ GEM
     thor (0.19.1)
     thread_safe (0.3.3)
     tilt (1.4.1)
-    tzinfo (0.3.39)
+    tzinfo (0.3.61)
     uber (0.0.4)
     uglifier (2.5.0)
       execjs (>= 0.3.0)