diff --git a/openproject-webhooks.gemspec b/openproject-webhooks.gemspec
index 8f814f8b6f..382fbab4da 100644
--- a/openproject-webhooks.gemspec
+++ b/openproject-webhooks.gemspec
@@ -15,6 +15,6 @@ Gem::Specification.new do |s|
 
   s.files = Dir["{app,config,db,doc,lib}/**/*"] + %w(README.md)
 
-  s.add_dependency 'rails', '~> 4.1.11'
+  s.add_dependency 'rails', '~> 4.2.4'
   
 end