diff --git a/Gemfile.lock b/Gemfile.lock
index 93e76bc..10d2c3c 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)
@@ -85,7 +77,7 @@ GEM
       railties (>= 3.0.0)
     faker (1.1.2)
       i18n (~> 0.5)
-    ffi (1.4.0)
+    ffi (1.11.2)
     guard (1.6.2)
       listen (>= 0.6.0)
       lumberjack (>= 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)