diff --git a/Gemfile.lock b/Gemfile.lock
index 93e76bc..3b3d451 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,16 +64,8 @@ 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)
@@ -214,7 +206,7 @@ GEM
     treetop (1.4.12)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (0.3.36)
+    tzinfo (0.3.61)
     uglifier (1.3.0)
       execjs (>= 0.3.0)
       multi_json (~> 1.0, >= 1.0.2)
@@ -236,7 +228,6 @@ 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)