diff --git a/CHANGELOG.md b/CHANGELOG.md
index 02687db..db29c11 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 0.5.2 - 2026-06-14
+- Add-on-Build invalidiert den Docker-Cache bei jeder Versionsänderung, damit
+  Versionsmetadaten und tatsächlich ausgelieferter Anwendungscode übereinstimmen
+- Korrigierte Ingress-Oberfläche aus 0.5.1 dadurch erstmals zuverlässig ausgeliefert
+
 ## 0.5.1 - 2026-06-14
 - Technische Modell-, Intervall- und Sicherheitsparameter aus der normalen
   Home-Assistant-Add-on-Konfiguration entfernt; sichere Standardwerte bleiben aktiv
diff --git a/addon/Dockerfile b/addon/Dockerfile
index 13d2962..4f5ad5f 100644
--- a/addon/Dockerfile
+++ b/addon/Dockerfile
@@ -4,13 +4,17 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1
 
+# The add-on version changes for every release. Copying its config before the
+# clone makes Docker invalidate the application layer instead of reusing old code.
+COPY config.yaml /tmp/addon-config.yaml
+
 RUN apt-get update \
     && apt-get install -y --no-install-recommends git \
     && git clone --depth 1 --branch main \
        http://192.168.6.31:3000/pino/sillyhome-next.git /app \
     && python -m pip install --upgrade pip \
     && python -m pip install /app \
-    && rm -rf /var/lib/apt/lists/* /app/.git
+    && rm -rf /var/lib/apt/lists/* /app/.git /tmp/addon-config.yaml
 
 COPY run.sh /run.sh
 RUN chmod 0755 /run.sh
diff --git a/addon/config.yaml b/addon/config.yaml
index 7169122..7ed818d 100644
--- a/addon/config.yaml
+++ b/addon/config.yaml
@@ -1,5 +1,5 @@
 name: SillyHome Next
-version: "0.5.1"
+version: "0.5.2"
 slug: sillyhome_next
 description: Lernt automatisch aus deinem Verhalten und steuert freigegebene Aktoren
 url: http://192.168.6.31:3000/pino/sillyhome-next
diff --git a/app/main.py b/app/main.py
index a7801f9..79b455f 100644
--- a/app/main.py
+++ b/app/main.py
@@ -77,7 +77,7 @@ async def lifespan(app: FastAPI) -> AsyncIterator[None]:
 app = FastAPI(
     title="SillyHome Next API",
     description="Lokales Smart-Home-Intelligenzsystem für Home Assistant.",
-    version="0.5.1",
+    version="0.5.2",
     lifespan=lifespan,
 )
 app.state.settings = load_settings()
diff --git a/pyproject.toml b/pyproject.toml
index ffddd9c..6cae252 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "sillyhome-next"
-version = "0.5.1"
+version = "0.5.2"
 description = "Lokales Smart-Home-Intelligenzsystem für Home Assistant"
 requires-python = ">=3.11"
 dependencies = [
diff --git a/tests/test_addon_config.py b/tests/test_addon_config.py
index 226251e..0ab79d1 100644
--- a/tests/test_addon_config.py
+++ b/tests/test_addon_config.py
@@ -8,3 +8,11 @@ def test_addon_does_not_expose_internal_learning_parameters() -> None:
     assert "\nschema:" not in config
     assert "prediction_confidence" not in config
     assert "execution_cooldown_seconds" not in config
+
+
+def test_addon_version_invalidates_application_build_layer() -> None:
+    dockerfile = Path("addon/Dockerfile").read_text(encoding="utf-8")
+
+    config_copy = dockerfile.index("COPY config.yaml /tmp/addon-config.yaml")
+    repository_clone = dockerfile.index("git clone --depth 1 --branch main")
+    assert config_copy < repository_clone