diff --git a/next.config.ts b/next.config.ts
index 7218a2d..a7bfbf2 100644
--- a/next.config.ts
+++ b/next.config.ts
@@ -133,7 +133,11 @@ const nextConfig: NextConfig = {
         headers: [
           {
             key: "Cache-Control",
-            value: "public, max-age=31536000, immutable",
+            // In dev, aggressive caching breaks HMR and can brick a tab with stale chunks.
+            value:
+              process.env.NODE_ENV === "production"
+                ? "public, max-age=31536000, immutable"
+                : "no-store",
           },
         ],
       },