diff --git a/Gemfile b/Gemfile
index e6511368..26d9a216 100644
--- a/Gemfile
+++ b/Gemfile
@@ -30,7 +30,7 @@ gem 'dalli'
 
 # Redmine extensions
 unless %w(easyproject easy_gantt).any? { |plugin| Dir.exist?(File.expand_path("../../#{plugin}", __FILE__)) }
-  gem 'redmine_extensions', '~> 0.2.5'
+  gem 'redmine_extensions', '~> 0.3.9'
 end
 
 # Dav4Rack