diff --git a/Dockerfile b/Dockerfile
index 71bad7f..a158a02 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-ARG PYTHON_DEP='python3 python3-wheel python3-typing-extensions python3-pandas python3-plotly python3-six python3-dateutil python3-brotli python3-pycryptodome libatlas3-base python3-cryptography python3-scipy androguard'
+ARG PYTHON_DEP='python3 python3-wheel python3-typing-extensions python3-pandas python3-six python3-dateutil python3-brotli python3-pycryptodome libatlas3-base python3-cryptography python3-scipy androguard python3-flask'
 
-FROM debian:buster-slim AS builder
+FROM debian:bullseye-slim AS builder
 ARG PYTHON_DEP
 RUN  BUILD_DEP='python3-pip python3-setuptools python3-dev libblas-dev liblapack-dev gfortran libatlas3-base' ; \
      apt-get update && apt-get install -y --no-install-recommends $BUILD_DEP $PYTHON_DEP;
@@ -8,7 +8,7 @@ COPY . /psa_car_controller/
 RUN  pip3 install --system --no-cache-dir  -r /psa_car_controller/requirements.txt
 EXPOSE 5000
 
-FROM debian:buster-slim
+FROM debian:bullseye-slim
 ARG PYTHON_DEP
 WORKDIR /config
 ENV PSACC_BASE_PATH=/ PSACC_PORT=5000 PSACC_OPTIONS="-c -r --web-conf" PSACC_CONFIG_DIR="/config"
diff --git a/requirements.txt b/requirements.txt
index da9c649..17b3de9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,14 +4,14 @@ dash_daq
 plotly>=5
 cryptography>=2.6
 Werkzeug>=1.0.0
+flask>=1.0.4
+dash_bootstrap_components>=1
 pandas
 oauth2_client
 requests
 pytz
 typing
 argparse
-flask
-dash_bootstrap_components>=1
 geojson
 reverse_geocode
 androguard