diff --git a/Gemfile.lock b/Gemfile.lock
index 2fbffeb..1490b74 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/
@@ -177,7 +177,7 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (>= 0.14.6, < 2.0)
-    rake (10.0.3)
+    rake (13.0.1)
     rb-inotify (0.9.0)
       ffi (>= 0.5.0)
     rdoc (3.12.2)