diff --git a/tests/integration/fixtures/bacnet/Dockerfile b/tests/integration/fixtures/bacnet/Dockerfile
index ff2927ae0..0424121af 100644
--- a/tests/integration/fixtures/bacnet/Dockerfile
+++ b/tests/integration/fixtures/bacnet/Dockerfile
@@ -1,13 +1,7 @@
-FROM ubuntu:latest as base
+FROM python:3.9 as base
 
 WORKDIR /opt
 
-RUN apt update \
-    && apt install -y \
-    python3 \
-    python3-pip \
-    && rm -rf /var/lib/apt/lists/*
-
 COPY requirements.txt .
 RUN python3 -m pip install -r requirements.txt --break-system-packages