diff --git a/scripts/bootstrap.sh b/scripts/bootstrap.sh
index ef8077f..84a8891 100644
--- a/scripts/bootstrap.sh
+++ b/scripts/bootstrap.sh
@@ -109,7 +109,7 @@ sudo apt-get -y upgrade
 sudo apt-get -y autoremove
 
 echo "--- Install base packages ---"
-sudo apt-get -y install curl net-tools gcc git gnupg-agent make python openssl redis-server sudo tmux vim virtualenvwrapper zip python3-pythonmagick tesseract-ocr htop imagemagick asciidoctor > /dev/null 2>&1
+sudo apt-get -y install curl net-tools gcc git gnupg-agent make python openssl redis-server sudo tmux vim virtualenvwrapper zip python3-pythonmagick tesseract-ocr htop imagemagick asciidoctor jq > /dev/null 2>&1
 
 
 echo "--- Installing and configuring Postfix ---"
@@ -669,7 +669,7 @@ sudo sed -i "s/^misp_url\ =\ 'YOUR_MISP_URL'/misp_url\ =\ 'http:\/\/localhost'/g
 sudo sed -i "s/^misp_key\ =\ 'YOUR_KEY_HERE'/misp_key\ =\ '$AUTH_KEY'/g" /usr/local/src/mail_to_misp/mail_to_misp_config.py
 
 echo "--- Installing asciidoctor-pdf ---"
-gem install asciidoctor-pdf
+gem install asciidoctor-pdf --pre
 gem install pygments.rb
 
 echo "--- Setting the permissions… ---"