diff --git a/protocol/protocol.tex b/protocol/protocol.tex
index 3421a949..ce99cbfd 100644
--- a/protocol/protocol.tex
+++ b/protocol/protocol.tex
@@ -14366,7 +14366,7 @@ Peter Newell's illustration of the Jubjub bird, from \cite{Carroll1902}.
 \lsection{Change History}{changehistory}
 
 
-\historyentry{2021.2.4}{}
+\historyentry{2021.2.4}{2021-06-08}
 \begin{itemize}
 \nufive{
     \item Add an explicit consensus rule in \crossref{txnencodingandconsensus} that the