diff --git a/src/3rdParty/libkdtree/COPYING b/src/3rdParty/libkdtree/COPYING
index 15c56c61b4..e74fc557b0 100644
--- a/src/3rdParty/libkdtree/COPYING
+++ b/src/3rdParty/libkdtree/COPYING
@@ -1,6 +1,6 @@
 "The Artistic Licence 2.0"
 Copyright (c) 2000-2006, The Perl Foundation.
-https://www.perlfoundation.org/legal/licenses/artistic-2_0.html
+https://www.perlfoundation.org/artistic-license-20.html
 
 Everyone is permitted to copy and distribute verbatim copies of this license
 document, but changing it is not allowed.