diff --git a/lib/additional_tags/plugin_version.rb b/lib/additional_tags/plugin_version.rb
index 8fd3a80..5d06e49 100644
--- a/lib/additional_tags/plugin_version.rb
+++ b/lib/additional_tags/plugin_version.rb
@@ -2,6 +2,6 @@
 
 module AdditionalTags
   module PluginVersion
-    VERSION = '3.4.0' unless defined? AdditionalTags::PluginVersion::VERSION
+    VERSION = '4.0.0-main' unless defined? AdditionalTags::PluginVersion::VERSION
   end
 end