diff --git a/Gemfile.lock b/Gemfile.lock
index 0180a2b..6c6e309 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -98,7 +98,7 @@ GEM
       polyglot (>= 0.3.1)
     turbolinks (2.5.3)
       coffee-rails
-    tzinfo (0.3.44)
+    tzinfo (0.3.61)
     uglifier (2.7.1)
       execjs (>= 0.3.0)
       json (>= 1.8.0)