diff --git a/src/heckbot/cogs/picker.py b/src/heckbot/cogs/picker.py
index d2f0944..39b7188 100644
--- a/src/heckbot/cogs/picker.py
+++ b/src/heckbot/cogs/picker.py
@@ -3,7 +3,8 @@
 import csv
 import os
 import random
-from datetime import datetime, timedelta
+from datetime import datetime
+from datetime import timedelta
 from pathlib import Path
 from urllib.parse import quote
 
@@ -143,7 +144,7 @@ async def set_picks(self, ctx: Context):
         await ctx.author.send(
             "Here's your custom link to edit your picks.\n"
             "Don't share this with anyone!\n" +
-            get_pick_link(self._bot.get_user(ctx.author.id).name)
+            get_pick_link(self._bot.get_user(ctx.author.id).name),
         )
 
 
diff --git a/src/heckbot/utils/auth.py b/src/heckbot/utils/auth.py
index 874a1e5..7e9fa14 100644
--- a/src/heckbot/utils/auth.py
+++ b/src/heckbot/utils/auth.py
@@ -1,35 +1,40 @@
+from __future__ import annotations
+
 import os
-from datetime import datetime, timedelta
+from datetime import datetime
+from datetime import timedelta
 from typing import Optional
 
 from cryptography.hazmat.backends import default_backend
-from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
+from cryptography.hazmat.primitives.ciphers import algorithms
+from cryptography.hazmat.primitives.ciphers import Cipher
+from cryptography.hazmat.primitives.ciphers import modes
 
 SECRET_KEY = os.getenv('HECKBOT_SECRET_KEY')
 
 
 def encrypt(username: str, expiry: str) -> tuple[bytes, bytes]:
-    message = f"{username}:{expiry}".encode()
+    message = f'{username}:{expiry}'.encode()
     iv = os.urandom(16)
     cipher = Cipher(
         algorithms.AES(
-            SECRET_KEY.encode()
-        ), modes.CFB(iv), backend=default_backend()
+            SECRET_KEY.encode(),
+        ), modes.CFB(iv), backend=default_backend(),
     )
     encryptor = cipher.encryptor()
     ciphertext = encryptor.update(message) + encryptor.finalize()
     return ciphertext, iv
 
 
-def decrypt(ciphertext: str, iv: str) -> Optional[str]:
+def decrypt(ciphertext: str, iv: str) -> str | None:
     cipher = Cipher(
         algorithms.AES(
-            SECRET_KEY.encode()
-        ), modes.CFB(iv.encode()), backend=default_backend()
+            SECRET_KEY.encode(),
+        ), modes.CFB(iv.encode()), backend=default_backend(),
     )
     decryptor = cipher.decryptor()
     decrypted_data = decryptor.update(
-        ciphertext.encode()
+        ciphertext.encode(),
     ) + decryptor.finalize()
     decoded_data = decrypted_data.decode()
     username, timestamp = decoded_data.split(':')