diff --git a/Dockerfile b/Dockerfile
index 485d36b..4ae30de 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,8 +5,10 @@ RUN apt-get install -y git hugo nginx build-essential unar wget
 RUN rm -rf /var/www/html
 RUN mkdir -p /var/www/html
 
+ENV GIT_URL=https://git.c3re.de/c3re/c3re-website.git
+
 WORKDIR /tmp
-RUN wget https://github.com/tdewolff/minify/releases/download/v2.20.14/minify_linux_amd64.tar.gz
+RUN wget https://github.com/tdewolff/minify/releases/download/v2.20.16/minify_linux_amd64.tar.gz
 RUN unar minify*tar.gz
 RUN mv minify_linux_amd64/minify /usr/local/bin
 
@@ -17,5 +19,5 @@ ADD starter /usr/local/bin/
 EXPOSE 80
 WORKDIR /repo
 
-RUN git clone https://git.c3re.de/c3re/c3re-website.git .
+RUN git clone "$GIT_URL" .
 CMD /usr/local/bin/starter
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