diff --git a/task-sdk/src/airflow/sdk/definitions/connection.py b/task-sdk/src/airflow/sdk/definitions/connection.py
index 1cbf75a7bb40f..1f4d4052b70f6 100644
--- a/task-sdk/src/airflow/sdk/definitions/connection.py
+++ b/task-sdk/src/airflow/sdk/definitions/connection.py
@@ -157,11 +157,6 @@ def get_uri(self) -> str:
         """Generate and return connection in URI format."""
         from urllib.parse import parse_qsl
 
-        if self.conn_type and "_" in self.conn_type:
-            log.warning(
-                "Connection schemes (type: %s) shall not contain '_' according to RFC3986.",
-                self.conn_type,
-            )
         if self.conn_type:
             uri = f"{self.conn_type.lower().replace('_', '-')}://"
         else: