diff --git a/Gemfile.lock b/Gemfile.lock
index 93e76bc..afd3ab3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,8 @@ GEM
     activesupport (3.2.12)
       i18n (~> 0.6)
       multi_json (~> 1.0)
-    addressable (2.3.3)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     arel (3.0.2)
     awesome_print (1.1.0)
     bcrypt-ruby (3.0.1)
@@ -64,16 +65,8 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.6.1)
-    columnize (0.3.6)
     database_cleaner (0.9.1)
     debug_inspector (0.0.2)
-    debugger (1.4.0)
-      columnize (>= 0.3.1)
-      debugger-linecache (~> 1.1.1)
-      debugger-ruby_core_source (~> 1.2.0)
-    debugger-linecache (1.1.2)
-      debugger-ruby_core_source (>= 1.1.1)
-    debugger-ruby_core_source (1.2.0)
     diff-lcs (1.2.1)
     erubis (2.7.0)
     execjs (1.4.0)
@@ -138,6 +131,7 @@ GEM
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.4)
+    public_suffix (4.0.6)
     rack (1.4.5)
     rack-cache (1.2)
       rack (>= 0.4)
@@ -236,7 +230,6 @@ DEPENDENCIES
   capybara (~> 2.0.2)
   coffee-rails (~> 3.2.1)
   database_cleaner (~> 0.9.1)
-  debugger
   factory_girl_rails (~> 4.2.1)
   faker (~> 1.1.2)
   guard-rspec (~> 2.5.0)