diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 36bdb03a..43c9a7b9 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -256,6 +256,7 @@ services:
       MF_JAEGER_URL: ${MF_JAEGER_URL}
     ports:
       - ${MF_COAP_ADAPTER_PORT}:${MF_COAP_ADAPTER_PORT}/udp
+      - ${MF_COAP_ADAPTER_PORT}:${MF_COAP_ADAPTER_PORT}/tcp
     networks:
       - mainflux-base-net
 
diff --git a/mqtt/aedes/mqtt.js b/mqtt/aedes/mqtt.js
index 72ac81dd..ca85cf3f 100644
--- a/mqtt/aedes/mqtt.js
+++ b/mqtt/aedes/mqtt.js
@@ -5,6 +5,8 @@
 
 'use strict';
 
+const version = '0.9.0';
+
 var http = require('http'),
     redis = require('redis'),
     net = require('net'),
@@ -109,6 +111,13 @@ esclient.on('error', function(err) {
 // MQTT over WebSocket
 function startWs() {
     var server = http.createServer();
+    server.on('request', (req, res) => {
+        if (req.url === '/version') {
+            res.statusCode = 200;
+            res.setHeader('Content-Type', 'text/plain; charset=utf-8');
+            res.end(`{"service":"mqtt-adapter","version":"${version}"}`);
+        }
+    }); 
     websocket.createServer({server: server}, aedes.handle);
     server.listen(config.ws_port);
     return server;