@@ -51,7 +51,9 @@ Requirements

  * [PyGObject bindings for GTK3](https://pygobject.readthedocs.io)

- * [Graphviz](http://www.graphviz.org/Download.php)

+ * [NumPy](https://numpy.org/)

+

+ * [Graphviz](https://graphviz.org/download/)

 Windows users

 -------------

@@ -60,16 +62,18 @@ Download and install:

  * [Python for Windows](https://www.python.org/downloads/windows/)

- * [PyGObject bindings for GTK3](https://wiki.gnome.org/action/show/Projects/PyGObject)

+ * [PyGObject bindings for GTK3](https://pygobject.readthedocs.io/en/latest/getting_started.html#windows-getting-started)

+

+ * `pip install numpy`

- * [Graphviz for Windows](http://www.graphviz.org/Download_windows.php)

+ * [Graphviz for Windows](https://graphviz.org/download/)

 Debian/Ubuntu users

 -------------------

 Run:

-    apt-get install gir1.2-gtk-3.0 python3-gi python3-gi-cairo graphviz

+    apt install gir1.2-gtk-3.0 python3-gi python3-gi-cairo python3-numpy graphviz

 Usage

 =====

@@ -55,5 +55,5 @@ setup(

     ],

     # This is true, but doesn't work realiably

-    #install_requires=['gi', 'gi-cairo'],

+    #install_requires=['gi', 'gi-cairo', 'numpy'],

 )