diff --git a/.changeset/silver-pianos-hide.md b/.changeset/silver-pianos-hide.md
new file mode 100644
index 000000000..cba444d93
--- /dev/null
+++ b/.changeset/silver-pianos-hide.md
@@ -0,0 +1,5 @@
+---
+"synckit": patch
+---
+
+fix: add missing `MessageChannel` from `node:worker_threads` for Node 14 compatibility
diff --git a/src/helpers.ts b/src/helpers.ts
index 169e27f47..6877f3a29 100644
--- a/src/helpers.ts
+++ b/src/helpers.ts
@@ -4,6 +4,7 @@ import path from 'node:path'
 import { fileURLToPath, pathToFileURL } from 'node:url'
 import {
   type MessagePort,
+  MessageChannel,
   Worker,
   receiveMessageOnPort,
 } from 'node:worker_threads'