diff --git a/Gemfile.lock b/Gemfile.lock
index 370a86b..bffb968 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,7 +154,7 @@ GEM
       execjs
       rails (>= 3.1)
       railties (>= 3.1)
-    tzinfo (0.3.33)
+    tzinfo (0.3.61)
     uglifier (1.2.5)
       execjs (>= 0.3.0)
       multi_json (~> 1.3)