diff --git a/Gemfile.lock b/Gemfile.lock
index 77241ae..7cb7790 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -185,7 +185,7 @@ GEM
     turn (0.9.7)
       ansi
       minitest (~> 4)
-    tzinfo (0.3.44)
+    tzinfo (0.3.61)
     uglifier (2.5.0)
       execjs (>= 0.3.0)
       json (>= 1.8.0)