diff --git a/CHANGES b/CHANGES
index 85aa4cc4e5..c14cd23a71 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,5 @@
+6132.	[doc]		Remove a dead link in the DNSSEC guide. [GL #3967]
+
 6131.	[test]		Add a minimal test-only library to allow testing
 			of the DNSRPS API without FastRPZ installed.
 			Thanks to Farsight Securty. [GL !7693]
diff --git a/doc/dnssec-guide/validation.rst b/doc/dnssec-guide/validation.rst
index 19b4762225..93021e5cc8 100644
--- a/doc/dnssec-guide/validation.rst
+++ b/doc/dnssec-guide/validation.rst
@@ -112,8 +112,6 @@ confirm that it is in fact validating DNS responses.
 
 -  `Internet.nl <https://en.conn.internet.nl/connection/>`__
 
--  `DNSSEC Resolver Test (uni-due.de) <https://dnssec.vs.uni-due.de/>`__
-
 -  `DNSSEC or Not (VeriSign) <https://www.dnssec-or-not.com/>`__
 
 .. _using_dig_to_verify: