diff --git a/CHANGELOG.md b/CHANGELOG.md
index c06c36a..4475b99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 # History
 
+- [2.5.5](#255-2024-06-18) (Jun 2024)
 - [2.5.4](#254-2024-02-22) (Feb 2024)
 - [2.5.3](#253-2024-02-21) (Feb 2024)
 - [2.5.2](#252-2023-01-12) (Jan 2023)
@@ -21,6 +22,14 @@
 
 # Release notes
 
+## [2.5.5](https://github.com/socketio/socket.io-adapter/compare/2.5.4...2.5.5) (2024-06-18)
+
+This release contains a bump of the `ws` dependency, which includes an important [security fix](https://github.com/websockets/ws/commit/e55e5106f10fcbaac37cfa89759e4cc0d073a52c).
+
+Advisory: https://github.com/advisories/GHSA-3h5v-q93c-6h6q
+
+
+
 ## [2.5.4](https://github.com/socketio/socket.io-adapter/compare/2.5.3...2.5.4) (2024-02-22)
 
 
diff --git a/package.json b/package.json
index ed900f2..dbb055e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "socket.io-adapter",
-  "version": "2.5.4",
+  "version": "2.5.5",
   "license": "MIT",
   "repository": {
     "type": "git",