diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 6a1383f2..a5aa3e38 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,3 +1,7 @@
+## [1.5.5] / 4 May 2023
+
+* [Update Akka.NET to 1.5.5](https://github.com/akkadotnet/akka.net/releases/tag/1.5.5)
+
 ## [1.5.4.1] / 1 May 2023
 
 * [Add ShardOptions.PassivateIdleEntityAfter option property](https://github.com/akkadotnet/Akka.Hosting/pull/290)