diff --git a/Gemfile b/Gemfile
index bb8ba530e..f99d79a6a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ if Gem::Version.new(Bundler::VERSION) < Gem::Version.new('1.5.0')
   abort "Redmine requires Bundler 1.5.0 or higher (you're using #{Bundler::VERSION}).\nPlease update with 'gem update bundler'."
 end
 
-gem "rails", "4.2.7.1"
+gem "rails", "4.2.8"
 gem "addressable", "2.4.0" if RUBY_VERSION < "2.0"
 gem "jquery-rails", "~> 3.1.4"
 gem "coderay", "~> 1.1.1"