diff --git a/Gemfile.lock b/Gemfile.lock
index e14ea59..d74572b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -141,7 +141,7 @@ GEM
       polyglot (>= 0.3.1)
     turn (0.9.5)
       ansi
-    tzinfo (0.3.33)
+    tzinfo (0.3.61)
     uglifier (1.2.4)
       execjs (>= 0.3.0)
       multi_json (>= 1.0.2)