diff --git a/Casks/password-practice.rb b/Casks/password-practice.rb
index 43441e8f3..94d7f8a2b 100644
--- a/Casks/password-practice.rb
+++ b/Casks/password-practice.rb
@@ -4,7 +4,7 @@ cask :v1 => 'password-practice' do
 
   url 'https://mrgeckosmedia.com/applications/download/PasswordPractice'
   homepage 'https://mrgeckosmedia.com/applications/info/PasswordPractice'
-  license :unknown    # todo: improve this machine-generated value
+  license :public_domain
 
   app 'Password Practice.app'
 end