diff --git a/Gemfile.lock b/Gemfile.lock
index 5a4bbca..ebc7ee0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -227,7 +227,7 @@ GEM
       rack (>= 1.3, < 3)
       rack-accept (~> 0.4)
       tilt (>= 1.4, < 3)
-    tzinfo (0.3.54)
+    tzinfo (0.3.61)
     uglifier (4.1.16)
       execjs (>= 0.3.0, < 3)
     underscore-rails (1.8.3)