diff --git a/README.md b/README.md
index 0c03f26898dfb985ac3864fecfec3131e6020225..32e8a42e284654456a3725a7807d740125ab6aa4 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Install all dependencies:
 
     apt-get install texlive-base-bin texlive-latex-base \
       texlive-latex-recommended texlive-latex-extra texlive-fonts-recommended \
-      texlive-science latex-beamer ghostscript
+      texlive-science latex-beamer ghostscript graphviz
 
 ## Making a new presentation
 Add this repository as a submodule of your project: