diff --git a/Gemfile.lock b/Gemfile.lock
index 2fbffeb..c06c5b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,7 @@ PATH
   remote: .
   specs:
     active_admin-awesome_nested_set (0.0.4)
-      rails (~> 3.2.5)
+      rails (>= 3.2.5, < 5.0)
 
 GEM
   remote: https://rubygems.org/
@@ -230,7 +230,7 @@ GEM
     treetop (1.4.12)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (0.3.35)
+    tzinfo (0.3.61)
     warden (1.2.1)
       rack (>= 1.0)
     websocket (1.0.7)