Update development_dependencies_install.md

Author: vipermark7

guides/source/development_dependencies_install.md

@@ -92,7 +92,7 @@ To install all run:
 
 ```bash
 $ sudo apt-get update
-$ sudo apt-get install sqlite3 libsqlite3-dev mysql-server libmysqlclient-dev postgresql postgresql-client postgresql-contrib libpq-dev redis-server memcached imagemagick ffmpeg mupdf mupdf-tools libxml2-dev libvips42 poppler-utils
+$ sudo apt-get install sqlite3 libsqlite3-dev mysql-server libmysqlclient-dev postgresql postgresql-client postgresql-contrib libpq-dev redis-server memcached imagemagick ffmpeg mupdf mupdf-tools libxml2-dev libvips42 poppler-utils libyaml-dev libffi-dev
 
 # Install Yarn
 # Use this command if you do not have Node.js installed