diff --git a/header.tpl b/header.tpl
index b5ae019..0cf07a1 100644
--- a/header.tpl
+++ b/header.tpl
@@ -179,7 +179,7 @@
       </div>
       <div class="menu-item">
         <img class="top-icon" src="img/update-icon.svg" alt="update icon"/>
-        <a href="https://github.com/NullHypothesis/censorbib/commits/master">Last update: 2020-05-11</a>
+        <a href="https://github.com/NullHypothesis/censorbib/commits/master">Last update: 2020-05-13</a>
       </div>
       <div class="menu-item">
         <img class="top-icon" src="img/donate-icon.svg" alt="donate icon"/>
diff --git a/references.bib b/references.bib
index a44c837..bb93487 100644
--- a/references.bib
+++ b/references.bib
@@ -1340,7 +1340,7 @@
 	booktitle = {Securing and Trusting Internet Names},
 	year = {2012},
 	publisher = {National Physical Laboratory},
-	url = {http://conferences.npl.co.uk/satin/papers/satin2012-Duan.pdf},
+	url = {https://www.icsi.berkeley.edu/pubs/networking/dnspoisoning12.pdf},
 }
 
 @inproceedings{Dyer2013a,