diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 088e1507..cd9062e1 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -16,7 +16,7 @@ repos:
       - id: check-merge-conflict
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.15.0
+    rev: v1.16.0
     hooks:
       - id: mypy
         files: openfeature
diff --git a/openfeature/immutable_dict/mapping_proxy_type.py b/openfeature/immutable_dict/mapping_proxy_type.py
index 634dd9b4..bb0e5704 100644
--- a/openfeature/immutable_dict/mapping_proxy_type.py
+++ b/openfeature/immutable_dict/mapping_proxy_type.py
@@ -26,7 +26,7 @@ def _immutable(self, *args: typing.Any, **kws: typing.Any) -> typing.NoReturn:
     __setitem__ = _immutable
     __delitem__ = _immutable
     clear = _immutable
-    update = _immutable  # type:ignore[assignment]
-    setdefault = _immutable  # type:ignore[assignment]
-    pop = _immutable  # type:ignore[assignment]
+    update = _immutable
+    setdefault = _immutable
+    pop = _immutable
     popitem = _immutable