diff --git a/Casks/f/ff-works.rb b/Casks/f/ff-works.rb
index 009379228e..0f1ad7e904 100644
--- a/Casks/f/ff-works.rb
+++ b/Casks/f/ff-works.rb
@@ -1,5 +1,5 @@
 cask "ff-works" do
-  version "4.0"
+  version "4.0.1"
   sha256 :no_check
 
   url "https://www.ffworks.net/ffWorks.dmg"