diff --git a/aiohttp/client_reqrep.py b/aiohttp/client_reqrep.py
index aa0d48159c0..92b3529bf13 100644
--- a/aiohttp/client_reqrep.py
+++ b/aiohttp/client_reqrep.py
@@ -1054,7 +1054,7 @@ def update_headers(self, headers: LooseHeaders | None) -> None:
         if isinstance(headers, (dict, MultiDictProxy, MultiDict)):
             headers = headers.items()
 
-        for key, value in headers:  # type: ignore[misc]
+        for key, value in headers:  # type: ignore[str-unpack]
             # A special case for Host header
             if key in hdrs.HOST_ALL:
                 self.headers[key] = value
diff --git a/aiohttp/web_log.py b/aiohttp/web_log.py
index 27b50adf6d6..9283cc08b12 100644
--- a/aiohttp/web_log.py
+++ b/aiohttp/web_log.py
@@ -4,15 +4,17 @@
 import os
 import re
 import time as time_mod
-from collections import namedtuple
 from collections.abc import Iterable
-from typing import Callable, ClassVar
+from typing import Callable, ClassVar, NamedTuple
 
 from .abc import AbstractAccessLogger
 from .web_request import BaseRequest
 from .web_response import StreamResponse
 
-KeyMethod = namedtuple("KeyMethod", "key method")
+
+class KeyMethod(NamedTuple):
+    key: str | tuple[str, str]
+    method: Callable[[BaseRequest, StreamResponse, float], str]
 
 
 class AccessLogger(AbstractAccessLogger):
@@ -198,7 +200,7 @@ def _format_D(request: BaseRequest, response: StreamResponse, time: float) -> st
 
     def _format_line(
         self, request: BaseRequest, response: StreamResponse, time: float
-    ) -> Iterable[tuple[str, Callable[[BaseRequest, StreamResponse, float], str]]]:
+    ) -> Iterable[tuple[str | tuple[str, str], str]]:
         return [(key, method(request, response, time)) for key, method in self._methods]
 
     @property
@@ -212,17 +214,17 @@ def log(self, request: BaseRequest, response: StreamResponse, time: float) -> No
             fmt_info = self._format_line(request, response, time)
 
             values = list()
-            extra = dict()
+            extra: dict[str, str | dict[str, str]] = dict()
             for key, value in fmt_info:
                 values.append(value)
 
-                if key.__class__ is str:
+                if isinstance(key, str):
                     extra[key] = value
                 else:
-                    k1, k2 = key  # type: ignore[misc]
-                    dct = extra.get(k1, {})  # type: ignore[var-annotated,has-type]
-                    dct[k2] = value  # type: ignore[index,has-type]
-                    extra[k1] = dct  # type: ignore[has-type,assignment]
+                    k1, k2 = key
+                    dct: dict[str, str] = extra.get(k1, {})  # type: ignore[assignment]
+                    dct[k2] = value
+                    extra[k1] = dct
 
             self.logger.info(self._log_format % tuple(values), extra=extra)
         except Exception:
diff --git a/requirements/constraints.txt b/requirements/constraints.txt
index b66ab9a7524..c6d30465d32 100644
--- a/requirements/constraints.txt
+++ b/requirements/constraints.txt
@@ -119,7 +119,7 @@ multidict==6.7.1
     #   -r requirements/multidict.in
     #   -r requirements/runtime-deps.in
     #   yarl
-mypy==1.19.1 ; implementation_name == "cpython"
+mypy==1.20.2 ; implementation_name == "cpython"
     # via
     #   -r requirements/lint.in
     #   -r requirements/test-common.in
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 3ea0c9d728c..265223cd0ea 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -116,7 +116,7 @@ multidict==6.7.1
     # via
     #   -r requirements/runtime-deps.in
     #   yarl
-mypy==1.19.1 ; implementation_name == "cpython"
+mypy==1.20.2 ; implementation_name == "cpython"
     # via
     #   -r requirements/lint.in
     #   -r requirements/test-common.in
diff --git a/requirements/lint.txt b/requirements/lint.txt
index 77209a1d445..c9cf6e965dc 100644
--- a/requirements/lint.txt
+++ b/requirements/lint.txt
@@ -51,7 +51,7 @@ markdown-it-py==4.0.0
     # via rich
 mdurl==0.1.2
     # via markdown-it-py
-mypy==1.19.1 ; implementation_name == "cpython"
+mypy==1.20.2 ; implementation_name == "cpython"
     # via -r requirements/lint.in
 mypy-extensions==1.1.0
     # via mypy
diff --git a/requirements/test-common.txt b/requirements/test-common.txt
index 878bd428141..fd6f9729e3f 100644
--- a/requirements/test-common.txt
+++ b/requirements/test-common.txt
@@ -40,7 +40,7 @@ markdown-it-py==4.0.0
     # via rich
 mdurl==0.1.2
     # via markdown-it-py
-mypy==1.19.1 ; implementation_name == "cpython"
+mypy==1.20.2 ; implementation_name == "cpython"
     # via -r requirements/test-common.in
 mypy-extensions==1.1.0
     # via mypy
diff --git a/requirements/test-ft.txt b/requirements/test-ft.txt
index e83b5d1bb7f..5b4e6bd7428 100644
--- a/requirements/test-ft.txt
+++ b/requirements/test-ft.txt
@@ -67,7 +67,7 @@ multidict==6.7.1
     # via
     #   -r requirements/runtime-deps.in
     #   yarl
-mypy==1.19.1 ; implementation_name == "cpython"
+mypy==1.20.2 ; implementation_name == "cpython"
     # via -r requirements/test-common.in
 mypy-extensions==1.1.0
     # via mypy
diff --git a/requirements/test.txt b/requirements/test.txt
index 8b8e81854f0..ad46077728a 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -67,7 +67,7 @@ multidict==6.7.1
     # via
     #   -r requirements/runtime-deps.in
     #   yarl
-mypy==1.19.1 ; implementation_name == "cpython"
+mypy==1.20.2 ; implementation_name == "cpython"
     # via -r requirements/test-common.in
 mypy-extensions==1.1.0
     # via mypy