diff --git a/osm_common/__init__.py b/osm_common/__init__.py
index 30a016f..4ed9a8f 100644
--- a/osm_common/__init__.py
+++ b/osm_common/__init__.py
@@ -1,2 +1,2 @@
-version = '0.1.3'
-date_version = '2018-04-25'
+version = '0.1.4'
+date_version = '2018-05-10'
diff --git a/osm_common/msgkafka.py b/osm_common/msgkafka.py
index 382bdef..2d82f97 100644
--- a/osm_common/msgkafka.py
+++ b/osm_common/msgkafka.py
@@ -41,17 +41,22 @@
             raise MsgException(str(e))
 
     def write(self, topic, key, msg):
+        """
+        Write a message at kafka bus
+        :param topic: message topic, must be string
+        :param key: message key, must be string
+        :param msg: message content, can be string or dictionary
+        :return: None or raises MsgException on failing
+        """
         try:
-            self.loop.run_until_complete(self.aiowrite(topic=topic, key=key,
-                                                       msg=yaml.safe_dump(msg, default_flow_style=True),
-                                                       loop=self.loop))
+            self.loop.run_until_complete(self.aiowrite(topic=topic, key=key, msg=msg))
 
         except Exception as e:
             raise MsgException("Error writing {} topic: {}".format(topic, str(e)))
 
     def read(self, topic):
         """
-        Read from one or several topics. it is non blocking returning None if nothing is available
+        Read from one or several topics.
         :param topic: can be str: single topic; or str list: several topics
         :return: topic, key, message; or None
         """