diff --git a/Casks/opensim.rb b/Casks/opensim.rb
index 66f1d184fc83..39d80837a3a2 100644
--- a/Casks/opensim.rb
+++ b/Casks/opensim.rb
@@ -1,6 +1,6 @@
 cask 'opensim' do
-  version '0.3.0'
-  sha256 '6f2baf5bd6af07cf922a609b1836ef613c720417f1f996d591daafdd6c81a11d'
+  version '0.4.0'
+  sha256 '12a5305a3cb199240c5f7200bbdf2e8866b7ae822f6d45aba642b77b46313b87'
 
   url "https://github.com/luosheng/OpenSim/releases/download/#{version}/OpenSim.app.zip"
   appcast 'https://github.com/luosheng/OpenSim/releases.atom'