diff --git a/README.md b/README.md
index d47bf76..fb0ddb7 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/fia
 - [NIP-12: Generic Tag Queries](12.md)
 - [NIP-13: Proof of Work](13.md)
 - [NIP-14: Subject tag in text events.](14.md)
+- [NIP-15: Nostr Marketplace (for resilient marketplaces)](15.md)
 - [NIP-16: Event Treatment](16.md)
 - [NIP-18: Reposts](18.md)
 - [NIP-19: bech32-encoded entities](19.md)