diff --git a/references.bib b/references.bib
index 75d589e..f95c60a 100644
--- a/references.bib
+++ b/references.bib
@@ -2388,7 +2388,7 @@
 	booktitle = {Securing and Trusting Internet Names},
 	year = {2012},
 	publisher = {National Physical Laboratory},
-	url = {https://www.cs.albany.edu/~mariya/courses/csi516F19/papers/holdon.pdf},
+	url = {https://www.icir.org/vern/papers/hold-on.satin12.pdf},
 }
 
 @inproceedings{Dyer2013a,