diff --git a/free-programming-books.md b/free-programming-books.md
index e4c24307e..ff7748a73 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -331,7 +331,7 @@
 #### Cellular Automata
 
 * [A New Kind of Science](https://www.wolframscience.com/nksonline/toc.html) - Stephen Wolfram
-* [Cellular Automata Books](http://uncomp.uwe.ac.uk/genaro/Cellular_Automata_Repository/Books.html)
+* [Cellular Automata Books](http://www.comunidad.escom.ipn.mx/genaro/Cellular_Automata_Repository/Books.html)
 
 
 #### Cloud Computing