diff --git a/Dockerfile b/Dockerfile
index 886dd35a9..e7fef061a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,23 +6,26 @@ ENV user=dependencycheck
 ENV version_url=https://jeremylong.github.io/DependencyCheck/current.txt
 ENV download_url=https://dl.bintray.com/jeremy-long/owasp
 
-RUN apt-get update                                       && \
-    apt-get install -y wget                              && \
-    wget -O /tmp/current.txt ${version_url}              && \
-    version=$(cat /tmp/current.txt)                      && \
-    file="dependency-check-${version}-release.zip"       && \
-    wget "$download_url/$file"                           && \
-    unzip ${file}                                        && \
-    rm ${file}                                           && \
-    mv dependency-check /usr/share/                      && \
-    useradd -ms /bin/bash ${user}                        && \
-    chown -R ${user}:${user} /usr/share/dependency-check && \
-    mkdir /report                                        && \
-    chown -R ${user}:${user} /report                     && \
-    apt-get remove --purge -y wget                       && \
-    apt-get autoremove -y                                && \
-    rm -rf /var/lib/apt/lists/*
+RUN apt-get update                                                          && \
+    apt-get install -y --no-install-recommends wget ruby mono-runtime       && \
+    gem install bundle-audit                                                && \
+    gem cleanup
 
+RUN wget -O /tmp/current.txt ${version_url}                                 && \
+    version=$(cat /tmp/current.txt)                                         && \
+    file="dependency-check-${version}-release.zip"                          && \
+    wget "$download_url/$file"                                              && \
+    unzip ${file}                                                           && \
+    rm ${file}                                                              && \
+    mv dependency-check /usr/share/                                         && \
+    useradd -ms /bin/bash ${user}                                           && \
+    chown -R ${user}:${user} /usr/share/dependency-check                    && \
+    mkdir /report                                                           && \
+    chown -R ${user}:${user} /report                                        && \
+    apt-get remove --purge -y wget                                          && \
+    apt-get autoremove -y                                                   && \
+    rm -rf /var/lib/apt/lists/* /tmp/*
+ 
 USER ${user}
 
 VOLUME ["/src" "/usr/share/dependency-check/data" "/report"]