diff --git a/Gemfile.lock b/Gemfile.lock
index f124db0..0a95727 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -171,7 +171,7 @@ GEM
       polyglot (>= 0.3.1)
     turbolinks (2.0.0)
       coffee-rails
-    tzinfo (0.3.38)
+    tzinfo (0.3.61)
     uglifier (2.3.3)
       execjs (>= 0.3.0)
       json (>= 1.8.0)