diff --git a/src/server.py b/src/server.py
index 86da020..73f460c 100644
--- a/src/server.py
+++ b/src/server.py
@@ -21,7 +21,7 @@ JSON: typing.Union[
 class TruthPayload(BaseModel):
     id: str
     content: str
-    author: typing.Literal["trump", "tate"] = Field(regex=r"^(trump|tate)$")
+    author: typing.Literal["trump", "tate"] = Field(pattern=r"^(trump|tate)$")
     timestamp: float = Field(default_factory=time.time, ge=0)
     extra: typing.Optional[JSON] = None