diff --git a/README.md b/README.md
index e387504ae..a7aeb1d70 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,7 @@ Simple Java Mail is available in [Maven Central](https://search.maven.org/#searc
 [v5.4.0](https://search.maven.org/#artifactdetails%7Corg.simplejavamail%7Csimple-java-mail%7C5.4.0%7Cjar) (27?-August-2019)
 
 - [#221](https://github.com/bbottema/simple-java-mail/issues/221) API bugfix: server identity verification should not be tied to host trusting
+- [#218](https://github.com/bbottema/simple-java-mail/issues/218) Enhancement: make Email serializable
 - [#227](https://github.com/bbottema/simple-java-mail/issues/227) Enhancement: Make parsing recipients from EML file more lenient
 
 
diff --git a/RELEASE.txt b/RELEASE.txt
index c490cec28..19f21c348 100644
--- a/RELEASE.txt
+++ b/RELEASE.txt
@@ -9,6 +9,7 @@ http://www.simplejavamail.org
 v5.4.0 (27?-August-2019)
 
 - #221: API bugfix: server identity verification should not be tied to host trusting
+- #218: Enhancement: make Email serializable
 - #227: Enhancement: Make parsing recipients from EML file more lenient