diff --git a/lib/redmine/version.rb b/lib/redmine/version.rb
index 8272e29e4..ef808a3ad 100644
--- a/lib/redmine/version.rb
+++ b/lib/redmine/version.rb
@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require 'rexml/document'
-
 module Redmine
   # @private
   module VERSION