diff --git a/Dockerfile b/Dockerfile
index a21f0f3..b5857bb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,15 +3,16 @@ FROM debian:buster
 RUN \
     apt-get update \
     && apt-get install --yes python3 git python3-pip libssl-dev libbz2-dev \
-    && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
     && pip3 install --no-cache-dir zeroc-ice \
+    && apt-get purge --yes libssl-dev libbz2-dev \
+    && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
     && useradd --system --no-create-home -U mumo
 
 VOLUME ["/data"]
 
 ADD bin/entrypoint.sh /entrypoint.sh
 
-RUN git clone https://github.com/mumble-voip/mumo.git --depth 1
+RUN git clone https://github.com/ailox/mumo.git --depth 1
 
 WORKDIR /mumo
 CMD ["/entrypoint.sh"]