diff --git a/Gemfile b/Gemfile
index 0700fdcf5..57f597292 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem "rails", "4.2.5.1"
+gem "rails", "4.2.5.2"
 
 # Legacy Rails features, remove me!
 # responders (class level)
diff --git a/Gemfile.lock b/Gemfile.lock
index 1702c33a7..769331968 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,40 +3,40 @@ GEM
   remote: https://rails-assets.org/
   specs:
     CFPropertyList (2.3.2)
-    actionmailer (4.2.5.1)
-      actionpack (= 4.2.5.1)
-      actionview (= 4.2.5.1)
-      activejob (= 4.2.5.1)
+    actionmailer (4.2.5.2)
+      actionpack (= 4.2.5.2)
+      actionview (= 4.2.5.2)
+      activejob (= 4.2.5.2)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 1.0, >= 1.0.5)
-    actionpack (4.2.5.1)
-      actionview (= 4.2.5.1)
-      activesupport (= 4.2.5.1)
+    actionpack (4.2.5.2)
+      actionview (= 4.2.5.2)
+      activesupport (= 4.2.5.2)
       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 (4.2.5.1)
-      activesupport (= 4.2.5.1)
+    actionview (4.2.5.2)
+      activesupport (= 4.2.5.2)
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
     active_model_serializers (0.9.4)
       activemodel (>= 3.2)
-    activejob (4.2.5.1)
-      activesupport (= 4.2.5.1)
+    activejob (4.2.5.2)
+      activesupport (= 4.2.5.2)
       globalid (>= 0.3.0)
-    activemodel (4.2.5.1)
-      activesupport (= 4.2.5.1)
+    activemodel (4.2.5.2)
+      activesupport (= 4.2.5.2)
       builder (~> 3.1)
-    activerecord (4.2.5.1)
-      activemodel (= 4.2.5.1)
-      activesupport (= 4.2.5.1)
+    activerecord (4.2.5.2)
+      activemodel (= 4.2.5.2)
+      activesupport (= 4.2.5.2)
       arel (~> 6.0)
     activerecord-import (0.11.0)
       activerecord (>= 3.0)
-    activesupport (4.2.5.1)
+    activesupport (4.2.5.2)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -115,6 +115,7 @@ GEM
       compass (~> 1.0.0)
       sass-rails (< 5.1)
       sprockets (< 2.13)
+    concurrent-ruby (1.0.1)
     configurate (0.3.1)
     connection_pool (2.2.0)
     crack (0.4.3)
@@ -447,7 +448,7 @@ GEM
       thread_safe (~> 0.3, >= 0.3.1)
     messagebus_ruby_api (1.0.3)
     method_source (0.8.2)
-    mime-types (2.99)
+    mime-types (2.99.1)
     mini_magick (4.4.0)
     mini_portile2 (2.0.0)
     minitest (5.8.4)
@@ -531,16 +532,16 @@ GEM
       rack
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.2.5.1)
-      actionmailer (= 4.2.5.1)
-      actionpack (= 4.2.5.1)
-      actionview (= 4.2.5.1)
-      activejob (= 4.2.5.1)
-      activemodel (= 4.2.5.1)
-      activerecord (= 4.2.5.1)
-      activesupport (= 4.2.5.1)
+    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)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.2.5.1)
+      railties (= 4.2.5.2)
       sprockets-rails
     rails-assets-diaspora_jsxc (0.1.4)
       rails-assets-favico.js (~> 0.3.9)
@@ -605,9 +606,9 @@ GEM
       remotipart (~> 1.0)
       safe_yaml (~> 1.0)
       sass-rails (>= 4.0, < 6)
-    railties (4.2.5.1)
-      actionpack (= 4.2.5.1)
-      activesupport (= 4.2.5.1)
+    railties (4.2.5.2)
+      actionpack (= 4.2.5.2)
+      activesupport (= 4.2.5.2)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.1.0)
@@ -853,7 +854,7 @@ DEPENDENCIES
   rack-protection (= 1.5.3)
   rack-rewrite (= 1.5.1)
   rack-ssl (= 1.4.1)
-  rails (= 4.2.5.1)
+  rails (= 4.2.5.2)
   rails-assets-diaspora_jsxc (~> 0.1.4)!
   rails-assets-highlightjs (= 9.1.0)!
   rails-assets-jakobmattsson--jquery-elastic (= 1.6.11)!