diff --git a/api/advent22_api/core/depends.py b/api/advent22_api/core/depends.py
index 96a52ef..b95eea8 100644
--- a/api/advent22_api/core/depends.py
+++ b/api/advent22_api/core/depends.py
@@ -1,4 +1,5 @@
 import re
+from collections import defaultdict
 from dataclasses import dataclass
 from datetime import date
 from io import BytesIO
@@ -71,9 +72,8 @@ async def get_all_parts(
         *rnd.sample(days, solution_length % num_days),
     ]
 
-    result: dict[int, str] = {}
+    result: defaultdict[int, str] = defaultdict(str)
     for day, letter in zip(solution_days, cfg.solution.clean):
-        result[day] = result.get(day, "")
         result[day] += letter
 
     result |= {missed_day: "" for missed_day in set(days) - set(result.keys())}
diff --git a/api/advent22_api/core/helpers.py b/api/advent22_api/core/helpers.py
index e33db43..78675d1 100644
--- a/api/advent22_api/core/helpers.py
+++ b/api/advent22_api/core/helpers.py
@@ -171,7 +171,7 @@ class EventDates:
     @property
     def next(self) -> date | None:
         """Datum des nächsten Ereignisses"""
-        return self.get_next(today=datetime.today().date())
+        return self.get_next(today=date.today())
 
     @property
     def last(self) -> date: