diff --git a/src/pybennu/pybennu/executables/groundtruth_monitor.py b/src/pybennu/pybennu/executables/groundtruth_monitor.py
index efe4fb1..2e77262 100644
--- a/src/pybennu/pybennu/executables/groundtruth_monitor.py
+++ b/src/pybennu/pybennu/executables/groundtruth_monitor.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 """ A monitor that ingests messages published by a provider into elastic
 
 This script will run on an ELK box as a daemon. It subscribes to a provider
@@ -18,7 +20,6 @@
 """
 
 import os
-import json
 import argparse
 import signal
 import sys
@@ -26,8 +27,7 @@
 from datetime import datetime
 from configparser import ConfigParser, NoOptionError
 
-from elasticsearch import Elasticsearch
-from elasticsearch import helpers
+from elasticsearch import Elasticsearch, helpers
 
 from pybennu.distributed.subscriber import Subscriber
 from pybennu.providers.utils.daemon import Daemon
@@ -71,7 +71,7 @@ def __init__(self, args):
         E.Endpoint_str_set(self.publish_endpoint, 'udp://239.0.0.1:40000')
         elastic_ip = '127.0.0.1'
         self._filter = '/'
-    
+
         if 'power-groundtruth-monitor' in config.sections():
             try:
                 E.Endpoint_str_set(self.publish_endpoint, config.get('power-groundtruth-monitor',
@@ -84,7 +84,7 @@ def __init__(self, args):
             except NoOptionError:
                 print("WARNING: elasticsearch-ip not found in the configuration file."
                       " Using default: {}".format(elastic_ip))
-            try: 
+            try:
                 self._filter = config.get('power-groundtruth-monitor', 'filter').strip()
             except NoOptionError:
                 print("WARNING: filter not found in the configuration file."
@@ -102,7 +102,7 @@ def __init__(self, args):
             except NoOptionError:
                 print("WARNING: elasticsearch-ip not found in the configuration file."
                       " Using default: {}".format(elastic_ip))
-            try: 
+            try:
                 self._filter = config.get('groundtruth-monitor', 'filter').strip()
             except NoOptionError:
                 print("WARNING: filter not found in the configuration file."
@@ -201,7 +201,7 @@ def __parse_filter(self):
                 self.fields.append('')
                 self.devices.append('')
                 self.providers.append('')
-            
+
     def __filter_message(self, message_dict):
         in_filter = False
         for i in range(len(self.providers)):
@@ -216,7 +216,7 @@ def push_updates_to_elastic(self):
                     messages = list(self.new_data)
                     self.new_data = []
                 index = 'bennu-'  + datetime.now().strftime('%Y.%m.%d')
-                actions = [{'_index': index, 'type': 'doc', '_source': message} for message in messages] 
+                actions = [{'_index': index, 'type': 'doc', '_source': message} for message in messages]
                 try:
                     res = helpers.bulk(self.__es, actions, request_timeout=30)
                 except:
@@ -256,7 +256,7 @@ def main():
     args = parser.parse_args()
 
     handle = GroundTruthMonitor(args)
-    handle.handler = handle._subscription_handler
+    handle.subscription_handler = handle._subscription_handler
     if args.operation == 'start':
         if args.daemonize:
             handle.start()
diff --git a/src/pybennu/pybennu/executables/pybennu_probe.py b/src/pybennu/pybennu/executables/pybennu_probe.py
index d7eee13..8fd68c9 100644
--- a/src/pybennu/pybennu/executables/pybennu_probe.py
+++ b/src/pybennu/pybennu/executables/pybennu_probe.py
@@ -57,7 +57,7 @@ def main():
     endpoint = E.new_Endpoint()
     E.Endpoint_str_set(endpoint, args.endpoint)
     probe = client.Client(endpoint)
-    probe.handler = handler
+    probe.reply_handler = handler
 
     msg = ""
     if args.command == 'query':