diff --git a/zip-0211.rst b/zip-0211.rst
index 56f7fe4b..94902c4f 100644
--- a/zip-0211.rst
+++ b/zip-0211.rst
@@ -136,6 +136,6 @@ References
 .. [#zip-0209] `ZIP 209: Prohibit Negative Shielded Value Pool <https://github.com/zcash/zips/blob/master/zip-0209.rst>`_
 .. [#zip-0251] `ZIP 251: Deployment of the Canopy Network Upgrade <https://github.com/zcash/zips/blob/master/zip-0251.rst>`_
 .. [#zip-0308] `ZIP 308: Sprout to Sapling Migration <https://github.com/zcash/zips/blob/master/zip-0308.rst>`_
-.. [#protocol] `Zcash Protocol Specification, Version 2019.0-beta-37 [Overwinter+Sapling] <https://github.com/zcash/zips/blob/master/protocol/protocol.pdf>`_
+.. [#protocol] `Zcash Protocol Specification, Version 2019.0.1 or later [Overwinter+Sapling] <https://github.com/zcash/zips/blob/master/protocol/protocol.pdf>`_
 .. [#zerocash] `Zerocash: Decentralized Anonymous Payments from Bitcoin (extended version) <http://zerocash-project.org/media/pdf/zerocash-extended-20140518.pdf>`_
 .. [#counterfeiting] `Zcash Counterfeiting Vulnerability Successfully Remediated <https://z.cash/blog/zcash-counterfeiting-vulnerability-successfully-remediated/>`_