diff --git a/15_Boxing/python/boxing.py b/15_Boxing/python/boxing.py
index 9d8c87d5..907f645c 100755
--- a/15_Boxing/python/boxing.py
+++ b/15_Boxing/python/boxing.py
@@ -3,7 +3,7 @@ import json
 import random
 from dataclasses import dataclass
 from pathlib import Path
-from typing import Dict, Literal, NamedTuple, Tuple
+from typing import Dict, Literal, NamedTuple, Tuple, cast
 
 
 class PunchProfile(NamedTuple):
@@ -70,7 +70,7 @@ def read_punch_profiles(filepath: Path) -> Dict[Literal[1, 2, 3, 4], PunchProfil
     with open(filepath) as f:
         punch_profile_dict = json.load(f)
     return {
-        int(key): PunchProfile(**value)
+        cast(Literal[1, 2, 3, 4], int(key)): PunchProfile(**value)
         for key, value in punch_profile_dict.items()
     }
 
diff --git a/83_Stock_Market/python/Stock_Market.py b/83_Stock_Market/python/Stock_Market.py
index 38d8442a..6ad3f8d1 100644
--- a/83_Stock_Market/python/Stock_Market.py
+++ b/83_Stock_Market/python/Stock_Market.py
@@ -34,7 +34,7 @@ class Stock_Market:
         return self.cash_assets + self.stock_assets
 
     def _generate_day_change(self) -> None:
-        self.changes = []
+        self.changes: List[float] = []
         self.changes.extend(
             round(random.uniform(-5, 5), 2) for _ in range(len(self.data))
         )