diff --git a/doc/manual.md b/doc/manual.md
index 6bedc315..f421d7e7 100644
--- a/doc/manual.md
+++ b/doc/manual.md
@@ -11,8 +11,9 @@ Install the needed dependencies.
 #### Debian
 
 ```
-apt-get install -y python3 python3-pip python3-venv python3-dev build-essential \
-    libpq-dev libmysqlclient-dev libmemcached-dev libgeos-dev gettext librsvg2-bin
+apt-get install -y build-essential gettext gfortran libfreetype6-dev libgeos-dev \
+    libjpeg-dev libmemcached-dev liblapack-dev libmysqlclient-dev libopenblas-dev \
+    libpq-dev librsvg2-bin pkg-config python3 python3-dev python3-pip python3-venv
 ```
 
 Feel free to add guides for other operating systems.