diff --git a/models.py b/models.py
index 5cbafa9..0856594 100644
--- a/models.py
+++ b/models.py
@@ -74,5 +74,5 @@ class Refund(BaseModel):
 
 
 class UIDPost(BaseModel):
-    UID: str = Field(description="The UID of the card.")
-    LNURLW: str = Field(description="The LNURLW of the card.")
+    UID: str | None = Field(None, description="The UID of the card.")
+    LNURLW: str | None = Field(None, description="The LNURLW of the card.")