diff --git a/src/promise/index.ts b/src/promise/index.ts
index 1edcf8a..101a418 100644
--- a/src/promise/index.ts
+++ b/src/promise/index.ts
@@ -1 +1,2 @@
 export { delay } from './delay.ts';
+export { pChain } from './pChain.ts';