diff --git a/homeassistant/components/renault/entity.py b/homeassistant/components/renault/entity.py
index 10de028b2d0..c7f83c1e6f2 100644
--- a/homeassistant/components/renault/entity.py
+++ b/homeassistant/components/renault/entity.py
@@ -60,5 +60,5 @@ class RenaultDataEntity(
     def _get_data_attr(self, key: str) -> StateType:
         """Return the attribute value from the coordinator data."""
         if self.coordinator.data is None:
-            return None  # type: ignore[unreachable]
+            return None
         return cast(StateType, getattr(self.coordinator.data, key))
diff --git a/homeassistant/helpers/template.py b/homeassistant/helpers/template.py
index 57587dc21d6..5b4a48bb07c 100644
--- a/homeassistant/helpers/template.py
+++ b/homeassistant/helpers/template.py
@@ -23,7 +23,16 @@ import statistics
 from struct import error as StructError, pack, unpack_from
 import sys
 from types import CodeType, TracebackType
-from typing import Any, Concatenate, Literal, NoReturn, Self, cast, overload
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Concatenate,
+    Literal,
+    NoReturn,
+    Self,
+    cast,
+    overload,
+)
 from urllib.parse import urlencode as urllib_urlencode
 import weakref
 
@@ -88,6 +97,9 @@ from .singleton import singleton
 from .translation import async_translate_state
 from .typing import TemplateVarsType
 
+if TYPE_CHECKING:
+    from _typeshed import OptExcInfo
+
 # mypy: allow-untyped-defs, no-check-untyped-defs
 
 _LOGGER = logging.getLogger(__name__)
@@ -532,7 +544,7 @@ class Template:
         self._compiled: jinja2.Template | None = None
         self.hass = hass
         self.is_static = not is_template_string(template)
-        self._exc_info: sys._OptExcInfo | None = None
+        self._exc_info: OptExcInfo | None = None
         self._limited: bool | None = None
         self._strict: bool | None = None
         self._log_fn: Callable[[int, str], None] | None = None
diff --git a/requirements_test.txt b/requirements_test.txt
index f9763630767..bac3ba2e20c 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -12,7 +12,7 @@ coverage==7.6.8
 freezegun==1.5.1
 license-expression==30.4.0
 mock-open==1.4.0
-mypy-dev==1.14.0a3
+mypy-dev==1.14.0a5
 pre-commit==4.0.0
 pydantic==1.10.19
 pylint==3.3.1