diff --git a/Gemfile b/Gemfile
index 6327227282ae006d9eeada89353dd4662c6ea462..5eaaf0cfb1cd066876292e174d16d2470b6606a4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem 'rails', '4.2.5.2'
+gem 'rails', '4.2.6'
 gem 'rails-deprecated_sanitizer', '~> 1.0.3'
 
 # Responders respond_to and respond_with
diff --git a/Gemfile.lock b/Gemfile.lock
index 229089f431d131b0dbed30d6773b72b213f9525f..df18410ececba41eaccb3a2a76f68d7a8b67ce9a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,41 +4,41 @@ GEM
     CFPropertyList (2.3.2)
     RedCloth (4.2.9)
     ace-rails-ap (2.0.1)
-    actionmailer (4.2.5.2)
-      actionpack (= 4.2.5.2)
-      actionview (= 4.2.5.2)
-      activejob (= 4.2.5.2)
+    actionmailer (4.2.6)
+      actionpack (= 4.2.6)
+      actionview (= 4.2.6)
+      activejob (= 4.2.6)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 1.0, >= 1.0.5)
-    actionpack (4.2.5.2)
-      actionview (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    actionpack (4.2.6)
+      actionview (= 4.2.6)
+      activesupport (= 4.2.6)
       rack (~> 1.6)
       rack-test (~> 0.6.2)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (4.2.5.2)
-      activesupport (= 4.2.5.2)
+    actionview (4.2.6)
+      activesupport (= 4.2.6)
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activejob (4.2.5.2)
-      activesupport (= 4.2.5.2)
+    activejob (4.2.6)
+      activesupport (= 4.2.6)
       globalid (>= 0.3.0)
-    activemodel (4.2.5.2)
-      activesupport (= 4.2.5.2)
+    activemodel (4.2.6)
+      activesupport (= 4.2.6)
       builder (~> 3.1)
-    activerecord (4.2.5.2)
-      activemodel (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    activerecord (4.2.6)
+      activemodel (= 4.2.6)
+      activesupport (= 4.2.6)
       arel (~> 6.0)
     activerecord-deprecated_finders (1.0.4)
     activerecord-session_store (0.1.2)
       actionpack (>= 4.0.0, < 5)
       activerecord (>= 4.0.0, < 5)
       railties (>= 4.0.0, < 5)
-    activesupport (4.2.5.2)
+    activesupport (4.2.6)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -464,8 +464,8 @@ GEM
       nokogiri (>= 1.5.9)
     macaddr (1.7.1)
       systemu (~> 2.6.2)
-    mail (2.6.3)
-      mime-types (>= 1.16, < 3)
+    mail (2.6.4)
+      mime-types (>= 1.16, < 4)
     mail_room (0.6.1)
     method_source (0.8.2)
     mime-types (1.25.1)
@@ -595,16 +595,16 @@ GEM
       rack
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.2.5.2)
-      actionmailer (= 4.2.5.2)
-      actionpack (= 4.2.5.2)
-      actionview (= 4.2.5.2)
-      activejob (= 4.2.5.2)
-      activemodel (= 4.2.5.2)
-      activerecord (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    rails (4.2.6)
+      actionmailer (= 4.2.6)
+      actionpack (= 4.2.6)
+      actionview (= 4.2.6)
+      activejob (= 4.2.6)
+      activemodel (= 4.2.6)
+      activerecord (= 4.2.6)
+      activesupport (= 4.2.6)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.2.5.2)
+      railties (= 4.2.6)
       sprockets-rails
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
@@ -614,9 +614,9 @@ GEM
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
-    railties (4.2.5.2)
-      actionpack (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    railties (4.2.6)
+      actionpack (= 4.2.6)
+      activesupport (= 4.2.6)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.1.0)
@@ -788,10 +788,10 @@ GEM
       spring (>= 0.9.1)
     sprockets (3.3.5)
       rack (> 1, < 3)
-    sprockets-rails (2.3.3)
-      actionpack (>= 3.0)
-      activesupport (>= 3.0)
-      sprockets (>= 2.8, < 4.0)
+    sprockets-rails (3.0.4)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
     state_machines (0.4.0)
     state_machines-activemodel (0.3.0)
       activemodel (~> 4.1)
@@ -1002,7 +1002,7 @@ DEPENDENCIES
   rack-attack (~> 4.3.1)
   rack-cors (~> 0.4.0)
   rack-oauth2 (~> 1.2.1)
-  rails (= 4.2.5.2)
+  rails (= 4.2.6)
   rails-deprecated_sanitizer (~> 1.0.3)
   raphael-rails (~> 2.1.2)
   rblineprof
diff --git a/config/environments/test.rb b/config/environments/test.rb
index f96ac6f97530378c206d2cebcc0842f29c797113..a703c0934f7ffe3f4c4e6c1a218d955785e0261b 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -8,6 +8,7 @@ Rails.application.configure do
   config.cache_classes = false
 
   # Configure static asset server for tests with Cache-Control for performance
+  config.assets.digest = false
   config.serve_static_files = true
   config.static_cache_control = "public, max-age=3600"