diff --git a/homeassistant/components/trace/utils.py b/homeassistant/components/trace/utils.py
index 50d1590e4fd..a12618af0ec 100644
--- a/homeassistant/components/trace/utils.py
+++ b/homeassistant/components/trace/utils.py
@@ -1,22 +1,28 @@
 """Helpers for script and automation tracing and debugging."""
+from __future__ import annotations
+
 from collections import OrderedDict
+from typing import Any, TypeVar
+
+_KT = TypeVar("_KT")
+_VT = TypeVar("_VT")
 
 
-class LimitedSizeDict(OrderedDict):
+class LimitedSizeDict(OrderedDict[_KT, _VT]):
     """OrderedDict limited in size."""
 
-    def __init__(self, *args, **kwds):
+    def __init__(self, *args: Any, **kwds: Any) -> None:
         """Initialize OrderedDict limited in size."""
         self.size_limit = kwds.pop("size_limit", None)
-        OrderedDict.__init__(self, *args, **kwds)
+        super().__init__(*args, **kwds)
         self._check_size_limit()
 
-    def __setitem__(self, key, value):
+    def __setitem__(self, key: _KT, value: _VT) -> None:
         """Set item and check dict size."""
-        OrderedDict.__setitem__(self, key, value)
+        super().__setitem__(key, value)
         self._check_size_limit()
 
-    def _check_size_limit(self):
+    def _check_size_limit(self) -> None:
         """Check dict size and evict items in FIFO order if needed."""
         if self.size_limit is not None:
             while len(self) > self.size_limit: