diff --git a/references.bib b/references.bib
index 1ed87a4..9251517 100644
--- a/references.bib
+++ b/references.bib
@@ -1003,7 +1003,7 @@ @inproceedings{Kaptchuk2021a
 	booktitle = {Computer and Communications Security},
 	publisher = {ACM},
 	year = {2021},
-	url = {https://www.cs.jhu.edu/~gkaptch1/publications/ccs21_meteor.pdf},
+	url = {https://www.cs.umd.edu/~kaptchuk/publications/ccs21_meteor.pdf},
 	discussion_url = {https://github.com/net4people/bbs/issues/104},
 }
 
@@ -3201,7 +3201,7 @@ @inproceedings{Wachs2014a
 	booktitle = {Cryptology and Network Security},
 	publisher = {Springer},
 	year = {2014},
-	url = {https://git.gnunet.org/bibliography.git/plain/docs/paper_cans2014_camera_ready.pdf},
+	url = {https://schanzen.eu/pubs/gns2014wachs.pdf},
 }
 
 @inproceedings{Waldman2000a,