diff --git a/application/src/main/java/org/thingsboard/mqtt/broker/install/ThingsboardMqttBrokerInstallService.java b/application/src/main/java/org/thingsboard/mqtt/broker/install/ThingsboardMqttBrokerInstallService.java
index c31f581a1..fdcc2d33b 100644
--- a/application/src/main/java/org/thingsboard/mqtt/broker/install/ThingsboardMqttBrokerInstallService.java
+++ b/application/src/main/java/org/thingsboard/mqtt/broker/install/ThingsboardMqttBrokerInstallService.java
@@ -81,6 +81,7 @@ public void performInstall() {
                     case "2.0.0":
                         log.info("Upgrading TBMQ from version 2.0.0 to 2.0.1 ...");
                         databaseEntitiesUpgradeService.upgradeDatabase("2.0.0");
+                        dataUpdateService.updateData("2.0.0");
                         break;
                     default:
                         throw new RuntimeException("Unable to upgrade TBMQ, unsupported fromVersion: " + upgradeFromVersion);
diff --git a/application/src/main/java/org/thingsboard/mqtt/broker/service/install/data/WebSocketClientSettings.java b/application/src/main/java/org/thingsboard/mqtt/broker/service/install/data/WebSocketClientSettings.java
index 0d2be1594..bd9c63a73 100644
--- a/application/src/main/java/org/thingsboard/mqtt/broker/service/install/data/WebSocketClientSettings.java
+++ b/application/src/main/java/org/thingsboard/mqtt/broker/service/install/data/WebSocketClientSettings.java
@@ -25,13 +25,15 @@ public class WebSocketClientSettings {
     public static AdminSettings createWsClientSettings() {
         AdminSettings wsClientSettings = new AdminSettings();
         wsClientSettings.setKey(BrokerConstants.WEBSOCKET_KEY);
+        wsClientSettings.setJsonValue(createWsClientJsonValue());
+        return wsClientSettings;
+    }
 
+    public static ObjectNode createWsClientJsonValue() {
         ObjectNode objectNode = JacksonUtil.newObjectNode();
         objectNode.put("isLoggingEnabled", false);
         objectNode.put("maxMessages", 1000);
-        wsClientSettings.setJsonValue(objectNode);
-
-        return wsClientSettings;
+        return objectNode;
     }
 
 }
diff --git a/application/src/main/java/org/thingsboard/mqtt/broker/service/install/update/DefaultDataUpdateService.java b/application/src/main/java/org/thingsboard/mqtt/broker/service/install/update/DefaultDataUpdateService.java
index 46ca99f2e..a0a0e084a 100644
--- a/application/src/main/java/org/thingsboard/mqtt/broker/service/install/update/DefaultDataUpdateService.java
+++ b/application/src/main/java/org/thingsboard/mqtt/broker/service/install/update/DefaultDataUpdateService.java
@@ -22,6 +22,7 @@
 import org.springframework.context.annotation.Profile;
 import org.springframework.stereotype.Service;
 import org.springframework.util.CollectionUtils;
+import org.thingsboard.mqtt.broker.common.data.AdminSettings;
 import org.thingsboard.mqtt.broker.common.data.BrokerConstants;
 import org.thingsboard.mqtt.broker.common.data.security.ClientCredentialsType;
 import org.thingsboard.mqtt.broker.common.data.security.MqttClientCredentials;
@@ -56,6 +57,10 @@ public void updateData(String fromVersion) throws Exception {
                 log.info("Updating data from version 1.4.0 to 2.0.0 ...");
                 createWsClientSettings();
                 break;
+            case "2.0.0":
+                log.info("Updating data from version 2.0.0 to 2.0.1 ...");
+                updateWsClientSettings();
+                break;
             default:
                 throw new RuntimeException("Unable to update data, unsupported fromVersion: " + fromVersion);
         }
@@ -100,7 +105,7 @@ String convertSslMqttClientCredentialsForVersion140(String oldCredentialsValueSt
     }
 
     private void createConnectivitySettings() {
-        if (adminSettingsService.findAdminSettingsByKey(BrokerConstants.CONNECTIVITY_KEY) == null) {
+        if (getAdminSettingsByKey(BrokerConstants.CONNECTIVITY_KEY) == null) {
             log.info("Creating connectivity settings ...");
             adminSettingsService.saveAdminSettings(ConnectivitySettings.createConnectivitySettings());
             log.info("Connectivity settings created!");
@@ -108,11 +113,45 @@ private void createConnectivitySettings() {
     }
 
     private void createWsClientSettings() {
-        if (adminSettingsService.findAdminSettingsByKey(BrokerConstants.WEBSOCKET_KEY) == null) {
-            log.info("Creating WebSocket client settings ...");
-            adminSettingsService.saveAdminSettings(WebSocketClientSettings.createWsClientSettings());
-            log.info("WebSocket client settings created!");
+        if (getAdminSettingsByKey(BrokerConstants.WEBSOCKET_KEY) == null) {
+            saveWsClientSettings();
         }
     }
 
+    private void saveWsClientSettings() {
+        log.info("Creating WebSocket client settings ...");
+        adminSettingsService.saveAdminSettings(WebSocketClientSettings.createWsClientSettings());
+        log.info("WebSocket client settings created!");
+    }
+
+    private void updateWsClientSettings() {
+        AdminSettings wsSettings = getAdminSettingsByKey(BrokerConstants.WEBSOCKET_KEY);
+        if (wsSettings == null) {
+            saveWsClientSettings();
+            return;
+        }
+        JsonNode jsonValue = wsSettings.getJsonValue();
+        if (jsonValue == null) {
+            log.info("Creating correct JSON value for WebSocket client settings ...");
+            wsSettings.setJsonValue(WebSocketClientSettings.createWsClientJsonValue());
+            adminSettingsService.saveAdminSettings(wsSettings);
+            log.info("WebSocket client settings updated with correct JSON value!");
+            return;
+        }
+        JsonNode maxMessages = jsonValue.get("maxMessages");
+        if (maxMessages == null || maxMessages.isNull()) {
+            log.info("Setting 'maxMessages' value for WebSocket client settings ...");
+
+            ObjectNode objectNode = (ObjectNode) jsonValue;
+            objectNode.put("maxMessages", 1000);
+
+            wsSettings.setJsonValue(objectNode);
+            adminSettingsService.saveAdminSettings(wsSettings);
+            log.info("WebSocket client settings updated with 'maxMessages' value!");
+        }
+    }
+
+    private AdminSettings getAdminSettingsByKey(String key) {
+        return adminSettingsService.findAdminSettingsByKey(key);
+    }
 }