diff --git a/app/Gemfile.lock b/app/Gemfile.lock
index 01da8b2..a4bdc89 100644
--- a/app/Gemfile.lock
+++ b/app/Gemfile.lock
@@ -301,7 +301,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (12.0.0)
+    rake (13.0.1)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -391,7 +391,6 @@ DEPENDENCIES
   spring-watcher-listen (= 2.0.1)
   therubyracer
   turbolinks (= 5.0.1)
-  tzinfo-data
   uglifier (= 3.2.0)
   web-console (= 3.5.1)
   will_paginate (= 3.1.5)