diff --git a/lib/matrix/version.rb b/lib/matrix/version.rb
index 4a8bc36aaa..edbb6efefe 100644
--- a/lib/matrix/version.rb
+++ b/lib/matrix/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 class Matrix
-  VERSION = "0.3.1"
+  VERSION = "0.4.0"
 end