diff --git a/Casks/open-codesign.rb b/Casks/open-codesign.rb
index cd7ce61..8f6e058 100644
--- a/Casks/open-codesign.rb
+++ b/Casks/open-codesign.rb
@@ -2,14 +2,16 @@
   version "0.2.1"
 
   on_arm do
+    sha256 "9e8ac362a79fdbe929913d3d5fb296b0b803fe7b2d680d1d0f71b7e3c0aaed70"
+
     url "https://github.com/OpenCoworkAI/open-codesign/releases/download/v#{version}/open-codesign-#{version}-arm64.dmg",
         verified: "github.com/OpenCoworkAI/open-codesign/"
-    sha256 "9e8ac362a79fdbe929913d3d5fb296b0b803fe7b2d680d1d0f71b7e3c0aaed70"
   end
   on_intel do
+    sha256 "6899f89169c37893575c597f1e98512ada873465cc2e9710b58d83e25342b8f3"
+
     url "https://github.com/OpenCoworkAI/open-codesign/releases/download/v#{version}/open-codesign-#{version}-x64.dmg",
         verified: "github.com/OpenCoworkAI/open-codesign/"
-    sha256 "6899f89169c37893575c597f1e98512ada873465cc2e9710b58d83e25342b8f3"
   end
 
   name "Open CoDesign"
@@ -22,10 +24,17 @@
   end
 
   auto_updates false
-  depends_on macos: ">= :big_sur"
+  depends_on macos: :big_sur
 
   app "Open CoDesign.app"
 
+  zap trash: [
+    "~/Library/Application Support/open-codesign",
+    "~/Library/Logs/open-codesign",
+    "~/Library/Preferences/ai.opencowork.codesign.plist",
+    "~/Library/Saved Application State/ai.opencowork.codesign.savedState",
+  ]
+
   # Unsigned build — macOS will refuse the first launch with a generic
   # "damaged, move to Trash" dialog. Code-signing + notarization is on the
   # Stage-2 roadmap; until then users need the xattr workaround below.
@@ -37,11 +46,4 @@
 
     You only need to do this once per install/update.
   EOS
-
-  zap trash: [
-    "~/Library/Application Support/open-codesign",
-    "~/Library/Preferences/ai.opencowork.codesign.plist",
-    "~/Library/Logs/open-codesign",
-    "~/Library/Saved Application State/ai.opencowork.codesign.savedState",
-  ]
 end
diff --git a/Casks/open-cowork.rb b/Casks/open-cowork.rb
index e5d7ed7..e1534fe 100644
--- a/Casks/open-cowork.rb
+++ b/Casks/open-cowork.rb
@@ -7,11 +7,16 @@
   desc "Desktop AI agent app with sandboxed environment"
   homepage "https://github.com/OpenCoworkAI/open-cowork"
 
-  depends_on macos: ">= :ventura"
+  depends_on macos: :ventura
   depends_on arch: :arm64
 
   app "Open Cowork.app"
 
+  zap trash: [
+    "~/Library/Application Support/open-cowork",
+    "~/Library/Preferences/com.opencowork.app.plist",
+  ]
+
   caveats <<~EOS
     Open Cowork is not signed with an Apple Developer certificate.
     If macOS shows "Apple cannot verify this app", reinstall with:
@@ -19,9 +24,4 @@
     Or manually remove the quarantine flag:
       xattr -rd com.apple.quarantine /Applications/Open\\ Cowork.app
   EOS
-
-  zap trash: [
-    "~/Library/Application Support/open-cowork",
-    "~/Library/Preferences/com.opencowork.app.plist",
-  ]
 end