diff --git a/melusine/base.py b/melusine/base.py
index 751266a..1f299e2 100644
--- a/melusine/base.py
+++ b/melusine/base.py
@@ -530,7 +530,7 @@ def describe(self, text: str, position: bool = False) -> None:
             position: If True, print regex match start and stop positions.
         """
 
-        def _describe_match_field(match_field_data: Dict[str, List[Dict[str, Any]]]) -> None:
+        def _describe_match_field(match_field_data: dict[str, list[dict[str, Any]]]) -> None:
             """
             Format and print result description text.
 
@@ -609,7 +609,7 @@ def pre_match_hook(self, text: str) -> str:
         """
         return text
 
-    def post_match_hook(self, match_dict: Dict[str, Any]) -> Dict[str, Any]:
+    def post_match_hook(self, match_dict: dict[str, Any]) -> dict[str, Any]:
         """
         Hook to run after the Melusine regex match.
 
diff --git a/tests/base/test_melusine_regex.py b/tests/base/test_melusine_regex.py
index 03918b8..721412d 100644
--- a/tests/base/test_melusine_regex.py
+++ b/tests/base/test_melusine_regex.py
@@ -153,7 +153,6 @@ def no_match_list(self):
 
 
 class PreMatchHookVirusRegex(VirusRegex):
-
     def pre_match_hook(self, text: str) -> str:
         text = text.replace("virrrrus", "virus")
         return text
@@ -168,12 +167,14 @@ def test_pre_match_hook():
 
 
 class PostMatchHookVirusRegex(VirusRegex):
-
     def post_match_hook(self, match_dict: Dict[str, Any]) -> Dict[str, Any]:
         """Test custom post processing of match data"""
-        if match_dict[self.MATCH_RESULT] is True:
-            if "NEUTRAL_MEDICAL_VIRUS" in match_dict[self.NEUTRAL_MATCH_FIELD] and "NEUTRAL_INSECT" in match_dict[self.NEUTRAL_MATCH_FIELD]:
-                match_dict[self.MATCH_RESULT] = False
+        if (
+                match_dict[self.MATCH_RESULT] is True
+                and "NEUTRAL_MEDICAL_VIRUS" in match_dict[self.NEUTRAL_MATCH_FIELD]
+                and "NEUTRAL_INSECT" in match_dict[self.NEUTRAL_MATCH_FIELD]
+        ):
+            match_dict[self.MATCH_RESULT] = False
 
         return match_dict