diff --git a/History.md b/History.md
index 9a82faab..6887d18d 100644
--- a/History.md
+++ b/History.md
@@ -1,5 +1,10 @@
 # Liquid Change Log
 
+## 4.0.4 / (unreleased)
+
+### Fixed
+* Fix ruby 3.2 compatibility by avoiding use of the removed taint API
+
 ## 4.0.3 / 2019-03-12
 
 ### Fixed
diff --git a/lib/liquid/version.rb b/lib/liquid/version.rb
index da01c476..9799863d 100644
--- a/lib/liquid/version.rb
+++ b/lib/liquid/version.rb
@@ -1,5 +1,5 @@
 # encoding: utf-8
 
 module Liquid
-  VERSION = "4.0.3".freeze
+  VERSION = "4.0.4".freeze
 end