diff --git a/dxlclient/_request_manager.py b/dxlclient/_request_manager.py
index 72d13ae..188b9fc 100644
--- a/dxlclient/_request_manager.py
+++ b/dxlclient/_request_manager.py
@@ -229,7 +229,7 @@ def on_response(self, response):
                 if request_message_id in self.sync_wait_message_ids:
                     self.sync_wait_message_ids.remove(request_message_id)
                     self.sync_wait_message_responses[request_message_id] = response
-                    self.sync_wait_message_condition.notifyAll()
+                    self.sync_wait_message_condition.notify_all()
 
             # Check for asynchronous callbacks
             callback = self.unregister_async_callback(request_message_id)
diff --git a/dxlclient/client.py b/dxlclient/client.py
index 9905e6a..57d84cb 100644
--- a/dxlclient/client.py
+++ b/dxlclient/client.py
@@ -605,7 +605,7 @@ def _disconnect(self):
             logger.debug("Waiting for the thread to terminate...")
             self._thread_terminate = True
             with self._connect_wait_lock:
-                self._connect_wait_condition.notifyAll()
+                self._connect_wait_condition.notify_all()
             while self._thread.is_alive():
                 self._thread.join(1)
             self._thread = None
@@ -944,7 +944,7 @@ def sync_request(self, request, timeout=_DEFAULT_WAIT):
             to the request. If the timeout is exceeded an exception will be raised. Defaults to ``3600``
             seconds (1 hour)
         """
-        if threading.currentThread().name.startswith(self._message_pool_prefix):
+        if threading.current_thread().name.startswith(self._message_pool_prefix):
             raise DxlException("Synchronous requests may not be invoked while handling an incoming message. " +
                                "The synchronous request must be made on a different thread.")