diff --git a/src/app/v1/[...route]/route.ts b/src/app/v1/[...route]/route.ts
index 3a3c82922..88651c055 100644
--- a/src/app/v1/[...route]/route.ts
+++ b/src/app/v1/[...route]/route.ts
@@ -1,4 +1,5 @@
 import "@/lib/polyfills/file";
+import "@/lib/polyfills/worker-threads";
 import { Hono } from "hono";
 import { handle } from "hono/vercel";
 import { registerCors } from "@/app/v1/_lib/cors";
diff --git a/src/app/v1beta/[...route]/route.ts b/src/app/v1beta/[...route]/route.ts
index 2c70283fe..b1f2f16a1 100644
--- a/src/app/v1beta/[...route]/route.ts
+++ b/src/app/v1beta/[...route]/route.ts
@@ -1,4 +1,5 @@
 import "@/lib/polyfills/file";
+import "@/lib/polyfills/worker-threads";
 import { Hono } from "hono";
 import { handle } from "hono/vercel";
 import { registerCors } from "@/app/v1/_lib/cors";
diff --git a/src/lib/polyfills/worker-threads.ts b/src/lib/polyfills/worker-threads.ts
new file mode 100644
index 000000000..e1162726e
--- /dev/null
+++ b/src/lib/polyfills/worker-threads.ts
@@ -0,0 +1,13 @@
+import { createRequire } from "node:module";
+
+const nodeRequire = createRequire(import.meta.url);
+const workerThreads = nodeRequire("node:worker_threads") as {
+  markAsUncloneable?: (...args: unknown[]) => void;
+};
+
+// undici >= 8 destructures markAsUncloneable from node:worker_threads without
+// a fallback. Bun (Docker build stage) does not implement this Node.js 23+ API,
+// so next build crashes during page data collection.
+if (typeof workerThreads.markAsUncloneable !== "function") {
+  workerThreads.markAsUncloneable = function markAsUncloneable() {};
+}