diff --git a/bot/db_utils.py b/bot/db_utils.py
index 88660d9..5597bc5 100644
--- a/bot/db_utils.py
+++ b/bot/db_utils.py
@@ -44,7 +44,7 @@ def get_player(username: str) -> int:
     if user:
         return int(user[0])
 
-def insert_player(username):
+def insert_player(username: str) -> int:
     '''Insert a new player with default has_rolled = False and return their user ID.'''
     CURSOR.execute(
         'INSERT INTO users (username, has_rolled) VALUES (?, ?)',
@@ -52,7 +52,7 @@ def insert_player(username):
     )
     return CURSOR.lastrowid
 
-def delete_player(username):
+def delete_player(username: str) -> bool:
     '''Permanently deletes a user and all their pulls.'''
     CURSOR.execute(
         'SELECT id FROM users WHERE username = ?',