diff --git a/dist/challenge-templates/xss-bot/challenge/Dockerfile b/dist/challenge-templates/xss-bot/challenge/Dockerfile
index 46acfa1e..5c00d137 100644
--- a/dist/challenge-templates/xss-bot/challenge/Dockerfile
+++ b/dist/challenge-templates/xss-bot/challenge/Dockerfile
@@ -21,7 +21,7 @@ RUN apt-get update && apt-get install -y gnupg2 wget
 #  plus libxshmfence1 which seems to be missing
 RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
     && sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list' \
-    && wget -q -O - https://deb.nodesource.com/setup_16.x | bash - \
+    && wget -q -O - https://deb.nodesource.com/setup_18.x | bash - \
     && apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends \
         ca-certificates \
@@ -69,6 +69,7 @@ COPY bot.js /home/user/
 COPY cookie /home/user/
 COPY .puppeteerrc.cjs /home/user/
 RUN cd /home/user && npm install puppeteer
+RUN cp -r /root/.cache /home/user/
 
 ENV DOMAIN="www.example.com"
 # Hosting multiple web challenges same-site to each other can lead to