diff --git a/async_processor/types.py b/async_processor/types.py
index 3c9f891..011ba67 100644
--- a/async_processor/types.py
+++ b/async_processor/types.py
@@ -48,7 +48,7 @@ def get_request_method(self) -> Optional[str]:
 
 
 class InputMessage(InputMessageInterface):
-    request_id: constr(regex=r"^[a-zA-Z0-9\-]{1,36}$")
+    request_id: constr(min_length=1)
     body: Any
     published_at_epoch_ns: Optional[int] = None
     stream_response: bool = False