diff --git a/Gemfile.lock b/Gemfile.lock
index 2e991b7..34c9f88 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -114,7 +114,7 @@ GEM
       polyglot (>= 0.3.1)
     turbolinks (1.3.0)
       coffee-rails
-    tzinfo (0.3.37)
+    tzinfo (0.3.61)
     uglifier (2.2.1)
       execjs (>= 0.3.0)
       multi_json (~> 1.0, >= 1.0.2)