diff --git a/apps/desktop/build/icon.icns b/apps/desktop/build/icon.icns
index f99da412..b4e97c6d 100644
Binary files a/apps/desktop/build/icon.icns and b/apps/desktop/build/icon.icns differ
diff --git a/apps/desktop/build/icon.png b/apps/desktop/build/icon.png
index e75d6014..0dee0efb 100644
Binary files a/apps/desktop/build/icon.png and b/apps/desktop/build/icon.png differ
diff --git a/apps/desktop/src/main/index.ts b/apps/desktop/src/main/index.ts
index fe80dde5..36881f36 100644
--- a/apps/desktop/src/main/index.ts
+++ b/apps/desktop/src/main/index.ts
@@ -4143,11 +4143,10 @@ app.whenReady().then(async () => {
   // dock picks up whatever the running binary advertises. During
   // `npm run dev` that's Electron's default, so we force our own.
   //
-  // The path has to come from windowIconPath(): build/ is not in the asar
-  // (`files` ships out/** only), the icon travels as an extraResource, and a
-  // packaged app resolving __dirname/../../build/icon.png just logged a failure
-  // on every launch.
-  if (isMac() && app.dock) {
+  // Dev only: a packaged app already advertises its bundle .icns, and
+  // setIcon would replace it with a raw NSImage, bypassing the system's
+  // icon treatment (#544 shipped an oversized dock tile this way).
+  if (isMac() && app.dock && !app.isPackaged) {
     try {
       app.dock.setIcon(windowIconPath())
     } catch (err) {