diff --git a/challenges/shrink-the-image/.dockerignore b/challenges/shrink-the-image/.dockerignore
new file mode 100644
index 0000000..89b6e16
--- /dev/null
+++ b/challenges/shrink-the-image/.dockerignore
@@ -0,0 +1,2 @@
+grade/
+tests/
\ No newline at end of file
diff --git a/challenges/shrink-the-image/Dockerfile b/challenges/shrink-the-image/Dockerfile
index 1ac445d..55431f9 100644
--- a/challenges/shrink-the-image/Dockerfile
+++ b/challenges/shrink-the-image/Dockerfile
@@ -1,15 +1,14 @@
-FROM python:3.13
-
-RUN apt-get update && apt-get install -y \
-    build-essential \
-    curl \
-    git \
-    vim
+FROM python:3.11.18-alpine3.23
 
+ENV PYTHONDONTWRITEBYTECODE=1 PYTHONUNBUFFERED=1
 WORKDIR /app
-COPY . .
 
-RUN pip install -r requirements.txt -r requirements-dev.txt
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app.py .
 
 EXPOSE 8000
-CMD ["gunicorn", "--bind", "0.0.0.0:8000", "--workers", "2", "app:app"]
+USER daemon
+
+CMD ["gunicorn", "--bind", "0.0.0.0:8000", "--workers", "2", "app:app"]
\ No newline at end of file