diff --git a/Gemfile.lock b/Gemfile.lock
index addbeee..0177bcd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ PATH
       valid (~> 1.0)
     diaspora_federation-rails (0.1.5)
       diaspora_federation (= 0.1.5)
-      rails (~> 4.2)
+      rails (>= 4.2)
     diaspora_federation-test (0.1.5)
       diaspora_federation (= 0.1.5)
       factory_girl (~> 4.7)
@@ -17,43 +17,45 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (4.2.7.1)
-      actionpack (= 4.2.7.1)
-      actionview (= 4.2.7.1)
-      activejob (= 4.2.7.1)
+    actioncable (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      nio4r (~> 1.2)
+      websocket-driver (~> 0.6.1)
+    actionmailer (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      actionview (= 5.0.0.1)
+      activejob (= 5.0.0.1)
       mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 1.0, >= 1.0.5)
-    actionpack (4.2.7.1)
-      actionview (= 4.2.7.1)
-      activesupport (= 4.2.7.1)
-      rack (~> 1.6)
-      rack-test (~> 0.6.2)
-      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.0.0.1)
+      actionview (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      rack (~> 2.0)
+      rack-test (~> 0.6.3)
+      rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (4.2.7.1)
-      activesupport (= 4.2.7.1)
+    actionview (5.0.0.1)
+      activesupport (= 5.0.0.1)
       builder (~> 3.1)
       erubis (~> 2.7.0)
-      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activejob (4.2.7.1)
-      activesupport (= 4.2.7.1)
-      globalid (>= 0.3.0)
-    activemodel (4.2.7.1)
-      activesupport (= 4.2.7.1)
-      builder (~> 3.1)
-    activerecord (4.2.7.1)
-      activemodel (= 4.2.7.1)
-      activesupport (= 4.2.7.1)
-      arel (~> 6.0)
-    activesupport (4.2.7.1)
+    activejob (5.0.0.1)
+      activesupport (= 5.0.0.1)
+      globalid (>= 0.3.6)
+    activemodel (5.0.0.1)
+      activesupport (= 5.0.0.1)
+    activerecord (5.0.0.1)
+      activemodel (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      arel (~> 7.0)
+    activesupport (5.0.0.1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
-      json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
-      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.4.0)
-    arel (6.0.3)
+    arel (7.1.4)
     ast (2.3.0)
     builder (3.2.2)
     byebug (9.0.6)
@@ -140,6 +142,7 @@ GEM
     multi_xml (0.5.5)
     multipart-post (2.0.0)
     nenv (0.3.0)
+    nio4r (1.2.1)
     nokogiri (1.6.8.1)
       mini_portile2 (~> 2.1.0)
     notiffany (0.1.1)
@@ -169,31 +172,30 @@ GEM
     pry-byebug (3.4.0)
       byebug (~> 9.0)
       pry (~> 0.10)
-    rack (1.6.4)
+    rack (2.0.1)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.2.7.1)
-      actionmailer (= 4.2.7.1)
-      actionpack (= 4.2.7.1)
-      actionview (= 4.2.7.1)
-      activejob (= 4.2.7.1)
-      activemodel (= 4.2.7.1)
-      activerecord (= 4.2.7.1)
-      activesupport (= 4.2.7.1)
+    rails (5.0.0.1)
+      actioncable (= 5.0.0.1)
+      actionmailer (= 5.0.0.1)
+      actionpack (= 5.0.0.1)
+      actionview (= 5.0.0.1)
+      activejob (= 5.0.0.1)
+      activemodel (= 5.0.0.1)
+      activerecord (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.2.7.1)
-      sprockets-rails
-    rails-deprecated_sanitizer (1.0.3)
-      activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.7)
-      activesupport (>= 4.2.0.beta, < 5.0)
+      railties (= 5.0.0.1)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.1)
+      activesupport (>= 4.2.0, < 6.0)
       nokogiri (~> 1.6.0)
-      rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
-    railties (4.2.7.1)
-      actionpack (= 4.2.7.1)
-      activesupport (= 4.2.7.1)
+    railties (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.1.0)
@@ -278,6 +280,9 @@ GEM
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff
+    websocket-driver (0.6.4)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.2)
     yard (0.9.5)
 
 PLATFORMS
diff --git a/diaspora_federation-rails.gemspec b/diaspora_federation-rails.gemspec
index 162f894..a40aa5c 100644
--- a/diaspora_federation-rails.gemspec
+++ b/diaspora_federation-rails.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |s|
 
   s.required_ruby_version = "~> 2.1"
 
-  s.add_dependency "rails", "~> 4.2"
+  s.add_dependency "rails", ">= 4.2"
 
   s.add_dependency "diaspora_federation", DiasporaFederation::VERSION
 end