diff --git a/lib/dotdiff/version.rb b/lib/dotdiff/version.rb
index 0b89e40..105a08f 100644
--- a/lib/dotdiff/version.rb
+++ b/lib/dotdiff/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module DotDiff
-  VERSION = '3.0.1'
+  VERSION = '4.0.0'
 end