diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index 50e2056..0e4d44b 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -6,6 +6,12 @@ export default defineConfig({
   plugins: [react(), tailwindcss()],
   server: {
     port: 5173,
+    watch: {
+      // Polling keeps HMR reliable on WSL, VM, and bind-mounted/shared filesystems
+      // where native file events can be dropped, causing updates only after refresh.
+      usePolling: true,
+      interval: 250,
+    },
     proxy: {
       // /api/v1/ws/... is a WebSocket endpoint under the same /api prefix,
       // so we must enable ws here or the upgrade handshake dies at the proxy.