diff --git a/stubs/pyserial/serial/rfc2217.pyi b/stubs/pyserial/serial/rfc2217.pyi
index b7e751c14b06..39275b8b7e8f 100644
--- a/stubs/pyserial/serial/rfc2217.pyi
+++ b/stubs/pyserial/serial/rfc2217.pyi
@@ -183,5 +183,5 @@ class PortManager:
     def telnet_send_option(self, action: bytes, option: bytes) -> None: ...
     def rfc2217_send_subnegotiation(self, option: bytes, value: bytes = b"") -> None: ...
     def check_modem_lines(self, force_notification: bool = False) -> None: ...
-    def escape(self, data: bytes) -> Generator[bytes, None, None]: ...
-    def filter(self, data: bytes) -> Generator[bytes, None, None]: ...
+    def escape(self, data: bytes) -> Generator[bytes]: ...
+    def filter(self, data: bytes) -> Generator[bytes]: ...
diff --git a/stubs/pyserial/serial/serialutil.pyi b/stubs/pyserial/serial/serialutil.pyi
index 913fb4b16048..3b6f84adee50 100644
--- a/stubs/pyserial/serial/serialutil.pyi
+++ b/stubs/pyserial/serial/serialutil.pyi
@@ -149,4 +149,4 @@ class SerialBase(io.RawIOBase):
     def send_break(self, duration: float = 0.25) -> None: ...
     def read_all(self) -> bytes | None: ...
     def read_until(self, expected: bytes = b"\n", size: int | None = None) -> bytes: ...
-    def iread_until(self, expected: bytes = ..., size: int | None = ...) -> Generator[bytes, None, None]: ...
+    def iread_until(self, expected: bytes = ..., size: int | None = ...) -> Generator[bytes]: ...
diff --git a/stubs/pyserial/serial/tools/list_ports.pyi b/stubs/pyserial/serial/tools/list_ports.pyi
index d40bb08961be..be96fdc686fb 100644
--- a/stubs/pyserial/serial/tools/list_ports.pyi
+++ b/stubs/pyserial/serial/tools/list_ports.pyi
@@ -2,10 +2,12 @@ import re
 import sys
 from collections.abc import Generator
 
+from serial.tools.list_ports_common import ListPortInfo
+
 if sys.platform == "win32":
     from serial.tools.list_ports_windows import comports as comports
 else:
     from serial.tools.list_ports_posix import comports as comports
 
-def grep(regexp: str | re.Pattern[str], include_links: bool = False) -> Generator[tuple[str, str, str], None, None]: ...
+def grep(regexp: str | re.Pattern[str], include_links: bool = False) -> Generator[ListPortInfo]: ...
 def main() -> None: ...
diff --git a/stubs/pyserial/serial/tools/list_ports_windows.pyi b/stubs/pyserial/serial/tools/list_ports_windows.pyi
index dc499e238ae3..b5ba02fc7714 100644
--- a/stubs/pyserial/serial/tools/list_ports_windows.pyi
+++ b/stubs/pyserial/serial/tools/list_ports_windows.pyi
@@ -74,5 +74,5 @@ if sys.platform == "win32":
         depth: int = 0,
         last_serial_number: str | None = None,
     ) -> str: ...
-    def iterate_comports() -> Generator[ListPortInfo, None, None]: ...
+    def iterate_comports() -> Generator[ListPortInfo]: ...
     def comports(include_links: bool = False) -> list[ListPortInfo]: ...
diff --git a/stubs/pyserial/serial/urlhandler/protocol_spy.pyi b/stubs/pyserial/serial/urlhandler/protocol_spy.pyi
index e1454586fabe..9020d7e07690 100644
--- a/stubs/pyserial/serial/urlhandler/protocol_spy.pyi
+++ b/stubs/pyserial/serial/urlhandler/protocol_spy.pyi
@@ -3,8 +3,8 @@ from typing import TextIO, type_check_only
 
 import serial
 
-def sixteen(data: bytes) -> Generator[tuple[str, str] | tuple[None, None], None, None]: ...
-def hexdump(data: bytes) -> Generator[tuple[int, str], None, None]: ...
+def sixteen(data: bytes) -> Generator[tuple[str, str] | tuple[None, None]]: ...
+def hexdump(data: bytes) -> Generator[tuple[int, str]]: ...
 @type_check_only
 class _Formatter:
     def rx(self, data: bytes) -> None: ...