diff --git a/src/group_vars/dev.yml b/src/group_vars/dev.yml
index 727334c..961d1c1 100644
--- a/src/group_vars/dev.yml
+++ b/src/group_vars/dev.yml
@@ -63,5 +63,6 @@ system_packages:
   - wait4x
   - openssh
   - gnupg
+  - graphviz
 
 ...