diff --git a/api/advent22_api/core/advent_image.py b/api/advent22_api/core/advent_image.py
index 8bc5fc4..437bf17 100644
--- a/api/advent22_api/core/advent_image.py
+++ b/api/advent22_api/core/advent_image.py
@@ -4,11 +4,13 @@ from typing import Self, TypeAlias, cast
 
 import numpy as np
 from PIL import Image, ImageDraw, ImageFont
+from PIL.Image import Resampling
 
 from .config import Config
 
 _RGB: TypeAlias = tuple[int, int, int]
 _XY: TypeAlias = tuple[float, float]
+_Box: TypeAlias = tuple[int, int, int, int]
 
 
 @dataclass(slots=True, frozen=True)
@@ -42,7 +44,7 @@ class AdventImage:
         return cls(
             img.resize(
                 size=(cfg.image.size, cfg.image.size),
-                resample=Image.LANCZOS,
+                resample=Resampling.LANCZOS,
             )
         )
 
@@ -50,10 +52,10 @@ class AdventImage:
         self,
         xy: _XY,
         text: str | bytes,
-        font: "ImageFont._Font",
+        font: ImageFont.FreeTypeFont,
         anchor: str | None = "mm",
         **text_kwargs,
-    ) -> "Image._Box | None":
+    ) -> _Box | None:
         """
         Koordinaten (links, oben, rechts, unten) des betroffenen
         Rechtecks bestimmen, wenn das Bild mit einem Text
@@ -78,14 +80,15 @@ class AdventImage:
 
     async def get_average_color(
         self,
-        box: "Image._Box",
+        box: _Box,
     ) -> tuple[int, int, int]:
         """
         Durchschnittsfarbe eines rechteckigen Ausschnitts in
         einem Bild berechnen
         """
 
-        pixel_data = self.img.crop(box).getdata()
+        pixel_data = np.asarray(self.img.crop(box))
+        print(pixel_data)
         mean_color: np.ndarray = np.mean(pixel_data, axis=0)
 
         return cast(_RGB, tuple(mean_color.astype(int)))
@@ -94,7 +97,7 @@ class AdventImage:
         self,
         xy: _XY,
         text: str | bytes,
-        font: "ImageFont._Font",
+        font: ImageFont.FreeTypeFont,
         anchor: str | None = "mm",
         **text_kwargs,
     ) -> None:
diff --git a/api/advent22_api/core/depends.py b/api/advent22_api/core/depends.py
index 7566644..f07f582 100644
--- a/api/advent22_api/core/depends.py
+++ b/api/advent22_api/core/depends.py
@@ -138,7 +138,7 @@ class TTFont:
     size: int = 50
 
     @property
-    async def font(self) -> "ImageFont._Font":
+    async def font(self) -> ImageFont.FreeTypeFont:
         return ImageFont.truetype(
             font=BytesIO(await WebDAV.read_bytes(self.file_name)),
             size=100,
diff --git a/api/advent22_api/core/helpers.py b/api/advent22_api/core/helpers.py
index 78675d1..10ecd2f 100644
--- a/api/advent22_api/core/helpers.py
+++ b/api/advent22_api/core/helpers.py
@@ -7,6 +7,7 @@ from typing import Any, Awaitable, Callable, Iterable, Self, Sequence, TypeVar
 
 from fastapi.responses import StreamingResponse
 from PIL import Image
+from PIL.Image import Resampling
 
 from .config import get_config
 from .dav.webdav import WebDAV
@@ -121,7 +122,7 @@ async def api_return_ico(img: Image.Image) -> StreamingResponse:
 
     # JPEG-Daten in Puffer speichern
     img_buffer = BytesIO()
-    img.resize(size=(256, 256), resample=Image.LANCZOS)
+    img.resize(size=(256, 256), resample=Resampling.LANCZOS)
     img.save(img_buffer, format="ICO")
     img_buffer.seek(0)