Update Subversion link
Update the subversion link to a working one
diff --git a/content/dev-doc/source-code.md b/content/dev-doc/source-code.md
index b285f7d..30e7c65 100644
--- a/content/dev-doc/source-code.md
+++ b/content/dev-doc/source-code.md
@@ -5,7 +5,7 @@
### River source code
-River uses [Subversion](http://subversion.tigris.org/) to manage its source code. Instructions on Subversion use can be found [here](http://svnbook.red-bean.com).
+River uses [Subversion](https://subversion.apache.org/) to manage its source code. Instructions on Subversion use can be found [here](http://svnbook.red-bean.com).
The source code for the various deliverables of Apache River can be freely browsed at <http://svn.apache.org/viewvc/river/>.
