diff --git a/.travis.yml b/.travis.yml
index b12489d..17c1e75 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,8 +4,16 @@ php:
   - 5.6
   - 7.0
   - 7.1
+  - 7.2
+  - 7.3
+  - hhvm
   - nightly
 
+matrix:
+    allow_failures:
+        - php: hhvm
+        - php: nightly
+
 before_script:
   - composer install
 
diff --git a/src/PubSubConnectionFactory.php b/src/PubSubConnectionFactory.php
index e0e97fd..111c3ce 100644
--- a/src/PubSubConnectionFactory.php
+++ b/src/PubSubConnectionFactory.php
@@ -82,21 +82,39 @@ protected function makeRedisAdapter(array $config)
      */
     protected function makeKafkaAdapter(array $config)
     {
-        // create producer
-        $producer = $this->container->makeWith('pubsub.kafka.producer');
-        $producer->addBrokers($config['brokers']);
-
-        // create consumer
+        // create default topic
         $topicConf = $this->container->makeWith('pubsub.kafka.topic_conf');
         $topicConf->set('auto.offset.reset', 'smallest');
 
+        // create config
         $conf = $this->container->makeWith('pubsub.kafka.conf');
         $conf->set('group.id', array_get($config, 'consumer_group_id', 'php-pubsub'));
         $conf->set('metadata.broker.list', $config['brokers']);
         $conf->set('enable.auto.commit', 'false');
         $conf->set('offset.store.method', 'broker');
+
+        if (array_key_exists('security_protocol', $config)) {
+            switch ($config['security_protocol']) {
+                case 'SASL_SSL':
+                case 'SASL_PAINTEXT':
+                    $conf->set('security.protocol', array_get($config, 'security_protocol', 'SASL_SSL'));
+                    $conf->set('sasl.username', array_get($config, 'sasl_username', 'sasl_username'));
+                    $conf->set('sasl.password', array_get($config, 'sasl_password', 'sasl_password'));
+                    $conf->set('sasl.mechanisms', array_get($config, 'sasl_mechanisms', 'PLAIN'));
+                    break;
+
+                default:
+                    break;
+            }
+        }
+
         $conf->setDefaultTopicConf($topicConf);
 
+        // create producer
+        $producer = $this->container->makeWith('pubsub.kafka.producer', ['conf' => $conf]);
+        $producer->addBrokers($config['brokers']);
+
+        // create consumer
         $consumer = $this->container->makeWith('pubsub.kafka.consumer', ['conf' => $conf]);
 
         return new KafkaPubSubAdapter($producer, $consumer);
diff --git a/src/PubSubServiceProvider.php b/src/PubSubServiceProvider.php
index 2058b9b..cbfe163 100644
--- a/src/PubSubServiceProvider.php
+++ b/src/PubSubServiceProvider.php
@@ -64,8 +64,8 @@ protected function registerAdapterDependencies()
             return new \RdKafka\TopicConf();
         });
 
-        $this->app->bind('pubsub.kafka.producer', function () {
-            return new \RdKafka\Producer();
+        $this->app->bind('pubsub.kafka.producer', function ($app, $parameters) {
+            return new \RdKafka\Producer($parameters['conf']);
         });
 
         $this->app->bind('pubsub.kafka.conf', function () {