diff --git a/lib/jekyll/version.rb b/lib/jekyll/version.rb
index 246f7d74..eeba3b26 100644
--- a/lib/jekyll/version.rb
+++ b/lib/jekyll/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Jekyll
-  VERSION = "4.3.0"
+  VERSION = "5.0.0.dev"
 end