diff --git a/Dockerfile b/Dockerfile
index 81e364f..6afe431 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,20 +1,22 @@
 # Use an official Python runtime with amd64 architecture
 FROM --platform=linux/amd64 python:3.11.1-slim-buster
 
-
 ENV PYTHONUNBUFFERED 1
 ENV PYTHONDONTWRITEBYTECODE 1
 ENV APP_HOME=/home/app
 
 # User and working dir
 RUN mkdir -p $APP_HOME
-RUN addgroup -S app && adduser -S -G app app
+RUN groupadd -r app && useradd -r -g app app
 WORKDIR $APP_HOME
 
-# Needed to build bjoern
-RUN apk update && apk add musl-dev gcc libev-dev
+# Needed to build bjoern (install build tools)
+RUN apt-get update && apt-get install -y \
+    gcc \
+    libev-dev \
+    && rm -rf /var/lib/apt/lists/*
 
-# Dependencies
+# Dependencies
 RUN pip install --upgrade pip
 COPY requirements.txt $APP_HOME/requirements.txt
 RUN pip install --no-cache-dir -r $APP_HOME/requirements.txt