diff --git a/config/initializers/version.rb b/config/initializers/version.rb
index 93dcef56..b7da9c7d 100644
--- a/config/initializers/version.rb
+++ b/config/initializers/version.rb
@@ -10,7 +10,7 @@ module Maybe
 
     private
       def semver
-        "0.3.0"
+        "0.4.0"
       end
   end
 end