diff --git a/Gemfile b/Gemfile
index 37a04aac..c85b496e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,6 @@ gem 'coffee-rails', '~>4.0'
 
 # add these gems to help with the transition:
 gem 'protected_attributes'
-gem 'rails-observers'
 gem 'actionpack-xml_parser', github: 'rails/actionpack-xml_parser'
 
 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
diff --git a/Gemfile.lock b/Gemfile.lock
index 1bc73ef0..4a4a408d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     RedCloth (4.2.9)
-    aasm (3.0.17)
+    aasm (3.0.18)
     actionmailer (4.0.0.rc1)
       actionpack (= 4.0.0.rc1)
       mail (~> 2.5.3)
@@ -37,8 +37,8 @@ GEM
     acts_as_list (0.2.0)
       activerecord (>= 3.0)
     arel (4.0.0)
-    aruba (0.5.2)
-      childprocess (~> 0.3.6)
+    aruba (0.5.3)
+      childprocess (>= 0.3.6)
       cucumber (>= 1.1.1)
       rspec-expectations (>= 2.7.0)
     atomic (1.1.9)
@@ -64,7 +64,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.6.2)
-    cucumber (1.3.1)
+    cucumber (1.3.2)
       builder (>= 2.1.2)
       diff-lcs (>= 1.1.3)
       gherkin (~> 2.12.0)
@@ -73,7 +73,7 @@ GEM
       capybara (>= 1.1.2)
       cucumber (>= 1.1.8)
       nokogiri (>= 1.5.0)
-    database_cleaner (0.9.1)
+    database_cleaner (1.0.1)
     diff-lcs (1.2.4)
     erubis (2.7.0)
     execjs (1.4.0)
@@ -93,14 +93,13 @@ GEM
       railties (>= 3.0, < 5.0)
       thor (>= 0.14, < 2.0)
     libv8 (3.11.8.17)
-    mail (2.5.3)
-      i18n (>= 0.4.0)
+    mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     metaclass (0.0.1)
     mime-types (1.23)
     minitest (4.7.4)
-    mocha (0.13.3)
+    mocha (0.14.0)
       metaclass (~> 0.0.1)
     multi_json (1.7.3)
     mysql2 (0.3.11)
@@ -121,8 +120,6 @@ GEM
       bundler (>= 1.3.0, < 2.0)
       railties (= 4.0.0.rc1)
       sprockets-rails (~> 2.0.0.rc4)
-    rails-observers (0.1.1)
-      railties (~> 4.0.0.beta)
     rails_autolink (1.1.0)
       rails (> 3.1)
     railties (4.0.0.rc1)
@@ -131,7 +128,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (10.0.4)
-    ref (1.0.4)
+    ref (1.0.5)
     rspec-expectations (2.13.0)
       diff-lcs (>= 1.1.3, < 2.0)
     rubyzip (0.9.9)
@@ -153,7 +150,7 @@ GEM
       multi_json (~> 1.0)
       simplecov-html (~> 0.7.1)
     simplecov-html (0.7.1)
-    sprockets (2.9.3)
+    sprockets (2.10.0)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)
@@ -181,7 +178,7 @@ GEM
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.37)
-    uglifier (2.1.0)
+    uglifier (2.1.1)
       execjs (>= 0.3.0)
       multi_json (~> 1.0, >= 1.0.2)
     uniform_notifier (1.2.0)
@@ -215,7 +212,6 @@ DEPENDENCIES
   protected_attributes
   rack-mini-profiler
   rails (= 4.0.0.rc1)
-  rails-observers
   rails_autolink
   rspec-expectations
   sanitize