diff --git a/Gemfile.lock b/Gemfile.lock
index ccb302f..29aa8da 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -151,7 +151,7 @@ GEM
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (0.3.55)
+    tzinfo (0.3.61)
     uuidtools (2.1.5)
     will_paginate (3.1.7)
     yui-compressor (0.11.0)