diff --git a/symbol_router.py b/symbol_router.py
index 2a0b2bb..df90248 100644
--- a/symbol_router.py
+++ b/symbol_router.py
@@ -15,11 +15,13 @@ from cg_Crypto import cg_Crypto
 from MarketData import MarketData
 from Symbol import Coin, Stock, Symbol
 
+from typing import Dict
+
 
 class Router:
     STOCK_REGEX = "(?:^|[^\\$])\\$([a-zA-Z.]{1,6})"
     CRYPTO_REGEX = "[$]{2}([a-zA-Z]{1,20})"
-    trending_count = {}
+    trending_count: Dict[str, float] = {}
 
     def __init__(self):
         self.stock = MarketData()
@@ -61,7 +63,7 @@ class Router:
         """
         schedule.run_pending()
 
-        symbols: List[Union[Stock, Symbol]] = []
+        symbols: list[Symbol] = []
         stocks = set(re.findall(self.STOCK_REGEX, text))
         for stock in stocks:
             # Market data lacks tools to check if a symbol is valid.