diff --git a/personal_data/fetchers/wanikani_lessons.py b/personal_data/fetchers/wanikani_lessons.py
index 575ac36..99cbd20 100644
--- a/personal_data/fetchers/wanikani_lessons.py
+++ b/personal_data/fetchers/wanikani_lessons.py
@@ -1,8 +1,8 @@
 import dataclasses
 import datetime
-from email.utils import parsedate_to_datetime
 import logging
 from collections.abc import Iterator, Mapping
+from email.utils import parsedate_to_datetime
 
 import requests_util
 
@@ -89,9 +89,13 @@ class WaniKaniSummaryFetcher(Scraper):
         total_lessons = sum(len(lesson.get('subject_ids', [])) for lesson in lessons)
 
         reviews = data.get('data', {}).get('reviews', [])
-        date_hdr = response.headers.get("Date")
+        date_hdr = response.headers.get('Date')
         try:
-            now = parsedate_to_datetime(date_hdr) if date_hdr else datetime.datetime.now(datetime.timezone.utc)
+            now = (
+                parsedate_to_datetime(date_hdr)
+                if date_hdr
+                else datetime.datetime.now(datetime.timezone.utc)
+            )
         except Exception:
             now = datetime.datetime.now(datetime.timezone.utc)
         total_reviews = 0