diff --git a/lib/DataCite/API.pm b/lib/DataCite/API.pm
index caba36a8631838d4ec95c0c4a8745a0883ebbfd5..f050e406d5567118553cd8327121e67cc261dc09 100644
--- a/lib/DataCite/API.pm
+++ b/lib/DataCite/API.pm
@@ -5,12 +5,12 @@
 
 =head1 DESCRIPTION
 
-Interact with DataCitee API ([1], [2])
+Interact with DataCite API ([1], [2])
 
 =head1 REFERENCES
 
-* [1] https://mds.datacite.org/static/apidoc
-* [2] https://mds.test.datacite.org/static/apidoc
+* [1] https://mds.datacite.org/static/apidoc (dead link as of 2021-09-01)
+* [2] https://mds.test.datacite.org/static/apidoc (dead link as of 2021-09-01)
 * [3] http://schema.test.datacite.org/
 * [4] https://blog.datacite.org/cool-dois/
 * [5] http://www.crockford.com/wrmg/base32.html