diff --git a/18-interrupts/README.md b/18-interrupts/README.md
index dfc87ee..db560b3 100644
--- a/18-interrupts/README.md
+++ b/18-interrupts/README.md
@@ -3,7 +3,7 @@
 **Goal: Set up the Interrupt Descriptor Table to handle CPU interrupts**
 
 This lesson and the following ones have been heavily inspired
-by [JamesM's tutorial](http://www.jamesmolloy.co.uk/tutorial_html/index.html)
+by [JamesM's tutorial](https://web.archive.org/web/20160412174753/http://www.jamesmolloy.co.uk/tutorial_html/index.html)
 
 Data types
 ----------
diff --git a/README.md b/README.md
index cbe4269..4f43623 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ code samples for anybody to follow. Honestly, this tutorial is basically the fir
 split into smaller pieces and without the theory.
 
 Updated: more sources: [the little book about OS development](https://littleosbook.github.io),
-[JamesM's kernel development tutorials](http://www.jamesmolloy.co.uk/tutorial_html/index.html)
+[JamesM's kernel development tutorials](https://web.archive.org/web/20160412174753/http://www.jamesmolloy.co.uk/tutorial_html/index.html)
 
 
 Features