diff --git a/README.md b/README.md
index c8d29f9..176d885 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ A set of utilities developed for the Grafoscopio (https://mutabit.com/grafoscopi
 
 ## Installation
 
-To install, first install [ExoRepo](https://code.tupale.co/Offray/ExoRepo) and then from a _playground_ in [GToolkit](https://gtoolkit.com/) execute:
+To install, first install [ExoRepo](https://code.sustrato.red/Offray/ExoRepo) and then from a _playground_ in [GToolkit](https://gtoolkit.com/) execute:
 
 ```smalltalk
     ExoRepo new