diff --git a/Dockerfile b/Dockerfile
index d322611..7a076ea 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,21 +2,15 @@ FROM alpine:latest
 
 RUN apk update && apk upgrade
 
-RUN apk add --update --no-cache python python-dev py-pip git gcc build-base freetype-dev libpng-dev
-
-RUN yes | pip install --upgrade pip
-RUN yes | pip install watchdog
-RUN yes | pip install geopy
-RUN yes | pip install gpxpy
-RUN yes | pip install numpy
-RUN yes | pip install matplotlib
-RUN yes | pip install pandas
+RUN apk add --update --no-cache python3 python3-dev git build-base freetype-dev && \
+	if [ ! -e /usr/bin/python ]; then ln -f /usr/bin/python3 /usr/bin/python ; fi && \
+	if [ ! -e /usr/bin/pip ]; then ln -f /usr/bin/pip3 /usr/bin/pip ; fi
 
 RUN git clone https://git.blackfinn.de/python/bicycle-statistics.git
-RUN mkdir -p /lib/systemd/system/
 RUN cd bicycle-statistics && python setup.py install
 RUN rm -rf bicycle-statistics
 
 COPY run.sh /bin/
 
-ENTRYPOINT [ "/bin/run.sh" ]
\ No newline at end of file
+ENTRYPOINT [ "/bin/run.sh" ]
+