diff --git a/stubs/PyMySQL/pymysql/connections.pyi b/stubs/PyMySQL/pymysql/connections.pyi
index 32abdbf533df..bf1d4bc08613 100644
--- a/stubs/PyMySQL/pymysql/connections.pyi
+++ b/stubs/PyMySQL/pymysql/connections.pyi
@@ -172,7 +172,7 @@ class Connection(Generic[_C]):
     def query(self, sql, unbuffered: bool = False) -> int: ...
     def next_result(self, unbuffered: bool = False) -> int: ...
     def affected_rows(self): ...
-    def kill(self, thread_id): ...
+    def kill(self, thread_id) -> None: ...
     def ping(self, reconnect: bool = True) -> None: ...
     @deprecated("Method is deprecated. Use set_character_set() instead.")
     def set_charset(self, charset: str) -> None: ...
@@ -180,7 +180,7 @@ class Connection(Generic[_C]):
     def connect(self, sock: _socket | None = None) -> None: ...
     def write_packet(self, payload) -> None: ...
     def _read_packet(self, packet_type=...): ...
-    def insert_id(self): ...
+    def insert_id(self) -> int: ...
     def thread_id(self): ...
     def character_set_name(self): ...
     def get_host_info(self) -> str: ...