diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index ec24915..3465960 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -12,7 +12,7 @@ This repository makes use of the [SASjs](https://sasjs.io) framework for code or
 * [VSCode](https://sasjs.io/windows/#vscode) - feature packed IDE for code editing (warning - highly effective!)
 * [GIT](https://sasjs.io/windows/#git) - a safety net you cannot (and should not) do without.
 
-For generating the documentation (`sasjs doc`) it is also necessary to install [doxygen](https://www.doxygen.nl/manual/install.html).
+For generating the documentation (`sasjs doc`) it is also necessary to install [doxygen](https://www.doxygen.nl/manual/install.html) and GraphViz (`sudo port install graphviz` on mac, or `sudo apt-get install graphviz` on Ubuntu).
 
 
 To get configured:
diff --git a/.gitpod.dockerfile b/.gitpod.dockerfile
index eb685b9..6b680a1 100644
--- a/.gitpod.dockerfile
+++ b/.gitpod.dockerfile
@@ -1,6 +1,6 @@
 FROM gitpod/workspace-full
 
 RUN sudo apt-get update \
- && sudo apt-get install -y \
-    doxygen \
+ && sudo apt-get install -y doxygen \
+ && sudo apt-get install -y graphviz \
  && sudo rm -rf /var/lib/apt/lists/*
diff --git a/.gitpod.yml b/.gitpod.yml
index e6933a4..47c1990 100644
--- a/.gitpod.yml
+++ b/.gitpod.yml
@@ -1,5 +1,7 @@
 tasks:
-  - init: nvm install --lts && npm i -g @sasjs/cli
+  - init: |
+      nvm install --lts
+      npm i -g @sasjs/cli
 
 image:
   file: .gitpod.dockerfile