diff --git a/Gemfile b/Gemfile
index cc90d69..96725a3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,9 @@
 source 'https://rubygems.org'
 
+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", "4.2.0"
 gem "jquery-rails", "~> 3.1.1"
 gem "coderay", "~> 1.1.0"