diff --git a/kvmd/aiogp.py b/kvmd/aiogp.py
index 3ee0ea2b..1b5ca16f 100644
--- a/kvmd/aiogp.py
+++ b/kvmd/aiogp.py
@@ -23,6 +23,7 @@
 import asyncio
 import threading
 import dataclasses
+import typing
 
 import gpiod
 
@@ -101,10 +102,10 @@ class AioReader:  # pylint: disable=too-many-instance-attributes
                 if line_req.wait_edge_events(1):
                     new: dict[int, bool] = {}
                     for event in line_req.read_edge_events():
-                        (pin, value) = self.__parse_event(event)
-                        new[pin] = value
-                    for (pin, value) in new.items():
-                        self.__values[pin].set(value)
+                        (pin, state) = self.__parse_event(event)
+                        new[pin] = state
+                    for (pin, state) in new.items():
+                        self.__values[pin].set(state)
                 else:  # Timeout
                     # XXX: Лимит был актуален для 1.6. Надо проверить, поменялось ли это в 2.x.
                     # Размер буфера ядра - 16 эвентов на линии. При превышении этого числа,
@@ -114,11 +115,12 @@ class AioReader:  # pylint: disable=too-many-instance-attributes
                         self.__values[pin].set(bool(value.value))  # type: ignore
 
     def __parse_event(self, event: gpiod.EdgeEvent) -> tuple[int, bool]:
-        if event.event_type == event.Type.RISING_EDGE:
-            return (event.line_offset, True)
-        elif event.event_type == event.Type.FALLING_EDGE:
-            return (event.line_offset, False)
-        raise RuntimeError(f"Invalid event {event} type: {event.type}")
+        match event.event_type:
+            case event.Type.RISING_EDGE:
+                return (event.line_offset, True)
+            case event.Type.FALLING_EDGE:
+                return (event.line_offset, False)
+        typing.assert_never(event.event_type)
 
 
 class _DebouncedValue:
diff --git a/kvmd/plugins/hid/_mcu/gpio.py b/kvmd/plugins/hid/_mcu/gpio.py
index ce1d678b..ab401582 100644
--- a/kvmd/plugins/hid/_mcu/gpio.py
+++ b/kvmd/plugins/hid/_mcu/gpio.py
@@ -68,7 +68,7 @@ class Gpio:  # pylint: disable=too-many-instance-attributes
             self.__line_req = gpiod.request_lines(
                 self.__device_path,
                 consumer="kvmd::hid",
-                config=config,
+                config=config,  # type: ignore
             )
 
     def __exit__(
diff --git a/kvmd/plugins/hid/spi.py b/kvmd/plugins/hid/spi.py
index cf58b5de..6580ba37 100644
--- a/kvmd/plugins/hid/spi.py
+++ b/kvmd/plugins/hid/spi.py
@@ -153,7 +153,7 @@ class _SpiPhy(BasePhy):  # pylint: disable=too-many-instance-attributes
                 )
 
     @contextlib.contextmanager
-    def __sw_cs_connected(self) -> Generator[(Callable[[bool], bool] | None), None, None]:
+    def __sw_cs_connected(self) -> Generator[(Callable[[bool], None] | None), None, None]:
         if self.__sw_cs_pin > 0:
             with gpiod.request_lines(
                 self.__gpio_device_path,
diff --git a/testenv/requirements.txt b/testenv/requirements.txt
index 874cc41b..4d6b8a4f 100644
--- a/testenv/requirements.txt
+++ b/testenv/requirements.txt
@@ -6,3 +6,4 @@ pyrad
 types-PyYAML
 types-aiofiles
 luma.oled
+gpiod>=2.3