diff --git a/api/advent22_api/routers/_image.py b/api/advent22_api/routers/_image.py
index 2ab3285..f238321 100644
--- a/api/advent22_api/routers/_image.py
+++ b/api/advent22_api/routers/_image.py
@@ -1,5 +1,6 @@
 import colorsys
 from dataclasses import dataclass
+from typing import Self
 
 import numpy as np
 from PIL import Image, ImageDraw, ImageFont
@@ -10,7 +11,7 @@ class AdventImage:
     img: Image.Image
 
     @classmethod
-    async def load_standard(cls, fp) -> "AdventImage":
+    async def load_standard(cls, fp) -> Self:
         """
         Bild laden und einen quadratischen Ausschnitt
         aus der Mitte nehmen
@@ -33,7 +34,7 @@ class AdventImage:
 
         img = img.resize(
             size=(500, 500),
-            resample=Image.ANTIALIAS,
+            resample=Image.LANCZOS,
         )
 
         # Farbmodell festlegen
diff --git a/api/advent22_api/routers/_misc.py b/api/advent22_api/routers/_misc.py
index 54a25eb..8437969 100644
--- a/api/advent22_api/routers/_misc.py
+++ b/api/advent22_api/routers/_misc.py
@@ -1,7 +1,7 @@
 import itertools
 import random
 import re
-from typing import Any, Sequence
+from typing import Any, Self, Sequence
 
 from fastapi import Depends
 from PIL import ImageFont
@@ -17,7 +17,7 @@ from ._image import AdventImage
 
 class Random(random.Random):
     @classmethod
-    async def get(cls, bonus_salt: Any = "") -> "Random":
+    async def get(cls, bonus_salt: Any = "") -> Self:
         cfg = await get_config()
         return cls(f"{cfg.puzzle.solution}{bonus_salt}")