diff --git a/README.md b/README.md
index 1ac5fc8..53f64c5 100644
--- a/README.md
+++ b/README.md
@@ -310,7 +310,7 @@ You can set option *Force Web-Sockets* to force using only web-sockets transport
 -->
 
 ## Changelog
-### __WORK IN PROGRESS__
+### 4.0.1 (2022-01-29)
 * (bluefox) Fixed authentication
 
 ### 4.0.0 (2022-01-29)
diff --git a/io-package.json b/io-package.json
index 3a72d4c..6c60e86 100644
--- a/io-package.json
+++ b/io-package.json
@@ -1,7 +1,7 @@
 {
   "common": {
     "name": "socketio",
-    "version": "4.0.0",
+    "version": "4.0.1",
     "title": "socket.io",
     "titleLang": {
       "en": "socket.io"
@@ -19,6 +19,18 @@
       "zh-cn": "该适配器允许与ioBroker通信不同的Web应用程序"
     },
     "news": {
+      "4.0.1": {
+        "en": "Fixed authentication",
+        "de": "Feste Authentifizierung",
+        "ru": "Фиксированная аутентификация",
+        "pt": "Autenticação fixa",
+        "nl": "Vaste authenticatie",
+        "fr": "Authentification fixe",
+        "it": "Autenticazione fissa",
+        "es": "Autenticación fija",
+        "pl": "Naprawiono uwierzytelnianie",
+        "zh-cn": "固定身份验证"
+      },
       "4.0.0": {
         "en": "Remove socket-io and use only web sockets",
         "de": "Socket-io entfernen und nur Web-Sockets verwenden",
@@ -90,18 +102,6 @@
         "es": "Se agregó el método getAdapterName",
         "pl": "Dodano metodę getAdapterName",
         "zh-cn": "添加了getAdapterName方法"
-      },
-      "3.0.12": {
-        "en": "socket.io pingTimeout and pinInterval increased to prevent too fast reconnections and bigger visualizations",
-        "de": "socket.io pingTimeout und pinInterval wurden erhöht, um zu schnelle Wiederverbindungen und größere Visualisierungen zu verhindern",
-        "ru": "socket.io pingTimeout и pinInterval увеличены, чтобы предотвратить слишком быстрое переподключение и большую визуализацию",
-        "pt": "socket.io pingTimeout e pinInterval aumentados para evitar reconexões muito rápidas e visualizações maiores",
-        "nl": "socket.io pingTimeout en pinInterval verhoogd om te snelle herverbindingen en grotere visualisaties te voorkomen",
-        "fr": "socket.io pingTimeout et pinInterval augmentés pour éviter des reconnexions trop rapides et des visualisations plus importantes",
-        "it": "socket.io pingTimeout e pinInterval aumentati per impedire riconnessioni troppo veloci e visualizzazioni più grandi",
-        "es": "socket.io pingTimeout y pinInterval aumentaron para evitar reconexiones demasiado rápidas y visualizaciones más grandes",
-        "pl": "socket.io pingTimeout i pinInterval zostały zwiększone, aby zapobiec zbyt szybkim ponownym połączeniom i większym wizualizacjom",
-        "zh-cn": "增加了socket.io pingTimeout和pinInterval，以防止重新连接速度过快和较大的可视化效果"
       }
     },
     "authors": [
diff --git a/package.json b/package.json
index a41c3e6..a7a4fa8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "iobroker.socketio",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "description": "This adapter allows to communicate different web applications with ioBroker.",
   "author": {
     "name": "bluefox",