diff --git a/models.py b/models.py
index a5fca94..fa27241 100644
--- a/models.py
+++ b/models.py
@@ -25,7 +25,7 @@ class NostrRelayInfo(BaseModel):
   description: Optional[str] 
   pubkey: Optional[str] 
   contact: Optional[str] = "https://t.me/lnbits"
-  supported_nips: List[str] = ["NIP01", "NIP09", "NIP11"]
+  supported_nips: List[str] = ["NIP01", "NIP09", "NIP11", "NIP15"]
   software: Optional[str] = "LNbist"
   version: Optional[str]