diff --git a/example-app/priv/Gemfile.lock b/example-app/priv/Gemfile.lock
index a7cead0..17ae7be 100644
--- a/example-app/priv/Gemfile.lock
+++ b/example-app/priv/Gemfile.lock
@@ -101,7 +101,7 @@ GEM
     treetop (1.4.12)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (0.3.37)
+    tzinfo (0.3.61)
     uglifier (2.1.0)
       execjs (>= 0.3.0)
       multi_json (~> 1.0, >= 1.0.2)