diff --git a/fichero_printer/Dockerfile b/fichero_printer/Dockerfile
index 41a8c8e..1c243d3 100644
--- a/fichero_printer/Dockerfile
+++ b/fichero_printer/Dockerfile
@@ -1,28 +1,23 @@
 ARG BUILD_FROM
 FROM $BUILD_FROM
 
-# BlueZ for BLE/RFCOMM + build tools for packages without binary wheels
+# Python 3, BlueZ and pre-compiled Alpine packages (no C compiler needed)
 RUN apk add --no-cache \
     bash \
+    python3 \
+    py3-pip \
+    py3-numpy \
+    py3-pillow \
     bluez \
-    dbus \
-    gcc \
-    musl-dev \
-    libjpeg-turbo-dev \
-    zlib-dev
+    dbus
 
-# Install Python runtime dependencies
-RUN pip install --no-cache-dir \
+# Pure-Python packages only (no compilation required)
+RUN pip3 install --no-cache-dir --break-system-packages \
     "bleak>=0.21" \
-    "numpy" \
-    "pillow" \
     "fastapi>=0.111" \
     "uvicorn[standard]>=0.29" \
     "python-multipart>=0.0.9"
 
-# Remove build-only packages to keep the image slim
-RUN apk del gcc musl-dev
-
 # Copy the fichero Python package into the container
 WORKDIR /app
 COPY fichero/ /app/fichero/
diff --git a/fichero_printer/build.yaml b/fichero_printer/build.yaml
index 305711b..48722ec 100644
--- a/fichero_printer/build.yaml
+++ b/fichero_printer/build.yaml
@@ -1,6 +1,6 @@
 build_from:
-  aarch64: "python:3.12-alpine3.21"
-  amd64: "python:3.12-alpine3.21"
-  armhf: "python:3.12-alpine3.21"
-  armv7: "python:3.12-alpine3.21"
-  i386: "python:3.12-alpine3.21"
+  aarch64: "ghcr.io/home-assistant/aarch64-base:latest"
+  amd64: "ghcr.io/home-assistant/amd64-base:latest"
+  armhf: "ghcr.io/home-assistant/armhf-base:latest"
+  armv7: "ghcr.io/home-assistant/armv7-base:latest"
+  i386: "ghcr.io/home-assistant/i386-base:latest"