diff --git a/Dockerfile b/Dockerfile
index 73a52dd..1e22375 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 # build ui #
 ############
 
-ARG NODE_VERSION=18.16
+ARG NODE_VERSION=18.18
 ARG PYTHON_VERSION=3.11-slim
 FROM node:${NODE_VERSION} AS build-ui
 
diff --git a/api/advent22_api/core/depends.py b/api/advent22_api/core/depends.py
index dd28a8b..7566644 100644
--- a/api/advent22_api/core/depends.py
+++ b/api/advent22_api/core/depends.py
@@ -100,21 +100,33 @@ async def get_all_auto_image_names(
     return dict(zip(days, rnd.shuffled(ls)))
 
 
+async def get_all_manual_image_names(
+    manual_image_names: list[str] = Depends(list_images_manual),
+) -> dict[int, str]:
+    """
+    Bilder: "manual" zuordnen
+    """
+
+    num_re = re.compile(r"/(\d+)\.", flags=re.IGNORECASE)
+    return {
+        int(num_match.group(1)): name
+        for name in manual_image_names
+        if (num_match := num_re.search(name)) is not None
+    }
+
+
 async def get_all_image_names(
     auto_image_names: dict[int, str] = Depends(get_all_auto_image_names),
-    manual_image_names: list[str] = Depends(list_images_manual),
+    manual_image_names: dict[int, str] = Depends(get_all_manual_image_names),
 ) -> dict[int, str]:
     """
     Bilder "auto" und "manual" zu Tagen zuordnen
     """
 
-    num_re = re.compile(r"/(\d+)\.", flags=re.IGNORECASE)
+    result = auto_image_names.copy()
+    result.update(manual_image_names)
 
-    for name in manual_image_names:
-        assert (num_match := num_re.search(name)) is not None
-        auto_image_names[int(num_match.group(1))] = name
-
-    return auto_image_names
+    return result
 
 
 @dataclass(slots=True, frozen=True)
@@ -184,6 +196,7 @@ async def get_day_image(
     day: int,
     days: list[int] = Depends(get_all_sorted_days),
     cfg: Config = Depends(get_config),
+    manual_image_names: dict[int, str] = Depends(get_all_manual_image_names),
     auto_image_names: dict[int, str] = Depends(get_all_auto_image_names),
     day_parts: dict[int, str] = Depends(get_all_parts),
     ttfonts: list[TTFont] = Depends(get_all_ttfonts),
@@ -196,14 +209,14 @@ async def get_day_image(
         return None
 
     try:
-        # Versuche, aus "manual"-Ordner zu laden
-        img = await load_image(f"images_manual/{day}.jpg")
+        # Versuche "manual"-Bild zu laden
+        img = await load_image(manual_image_names[day])
 
         # Als AdventImage verarbeiten
         image = await AdventImage.from_img(img, cfg)
         return image.img
 
-    except RuntimeError:
+    except (KeyError, RuntimeError):
         # Erstelle automatisch generiertes Bild
         return await gen_day_auto_image(
             day=day,