diff --git a/index.Rmd b/index.Rmd
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@@ -14,7 +14,7 @@ suppress-bibliography: true
 
 <a href="https://amzn.to/2WoabjB"><img src="cover.png" width="250" height="366" class="cover" alt="Buy on Amazon" /></a> This is the website for 2nd edition of __"[Advanced R](https://amzn.to/2WoabjB)"__, a book in Chapman & Hall's R Series. The book is designed primarily for R users who want to improve their programming skills and understanding of the language. It should also be useful for programmers coming to R from other languages, as help you to understand why R works the way it does.
 
-If you're looking for the 1st edition, you can find it at <http://adv-r.had.co.nz/>.
+If you're looking for the 1st edition, you can find it at <https://adv-r.hadley.nz/>.
 
 ## License {-}