diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 88fac6939e88..1e39bf8379aa 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,3 +1,3 @@
 FreeBSD does not currently accept pull requests. This is a read-only mirror from SVN.
 
-Please see the [Porter's Handbook](http://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/) section on [Submitting patches](http://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/porting-submitting.html).
+Please see the [Porter's Handbook](https://docs.freebsd.org/en/books/porters-handbook/) section on [Submitting patches](https://docs.freebsd.org/en/books/porters-handbook/porting-submitting.html).