diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac452545..8754a06d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## 2023
 
+- [6.5.4](#654-2023-11-09) (Nov 2023)
 - [6.5.3](#653-2023-10-06) (Oct 2023)
 - [6.5.2](#652-2023-08-01) (Aug 2023)
 - [6.5.1](#651-2023-06-27) (Jun 2023)
@@ -51,12 +52,23 @@
 
 # Release notes
 
+## [6.5.4](https://github.com/socketio/engine.io/compare/6.5.3...6.5.4) (2023-11-09)
+
+This release contains some minor changes which should improve the memory usage of the server, notably [this](https://github.com/socketio/engine.io/commit/f27a6c35017e4eb37546949f754e09933102837a).
+
+
+### Dependencies
+
+- [`ws@~8.11.0`](https://github.com/websockets/ws/releases/tag/8.11.0) (no change)
+
+
+
 ## [6.5.3](https://github.com/socketio/engine.io/compare/6.5.2...6.5.3) (2023-10-06)
 
 
 ### Bug Fixes
 
-* improve compatibility with node16 module resolution ([#689](https://github.com/socketio/engine.io/issues/689)) ([c6bf8c0](https://github.com/socketio/engine.io/commit/c6bf8c0f571aad7a5917f43860c8c3d74a9b429b)), closes [/github.com/microsoft/TypeScript/issues/46770#issuecomment-966612103](https://github.com//github.com/microsoft/TypeScript/issues/46770/issues/issuecomment-966612103)
+* improve compatibility with node16 module resolution ([#689](https://github.com/socketio/engine.io/issues/689)) ([c6bf8c0](https://github.com/socketio/engine.io/commit/c6bf8c0f571aad7a5917f43860c8c3d74a9b429b))
 * **webtransport:** properly handle abruptly closed connections ([ff1c861](https://github.com/socketio/engine.io/commit/ff1c8615483bab25acc9cf04fb40339b0bd78812))
 
 
diff --git a/package.json b/package.json
index 98ef51e0..aa53c4ac 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "engine.io",
-  "version": "6.5.3",
+  "version": "6.5.4",
   "description": "The realtime engine behind Socket.IO. Provides the foundation of a bidirectional connection between client and server",
   "type": "commonjs",
   "main": "./build/engine.io.js",