diff --git a/lib/py/src/server/TNonblockingServer.py b/lib/py/src/server/TNonblockingServer.py
index 79748b7..a930a80 100644
--- a/lib/py/src/server/TNonblockingServer.py
+++ b/lib/py/src/server/TNonblockingServer.py
@@ -88,7 +88,7 @@
     return read
 
 
-class Connection:
+class Connection(object):
     """Basic class is represented connection.
 
     It can be in state:
@@ -222,7 +222,7 @@
         self.socket.close()
 
 
-class TNonblockingServer:
+class TNonblockingServer(object):
     """Non-blocking server."""
 
     def __init__(self,
diff --git a/lib/py/src/server/TServer.py b/lib/py/src/server/TServer.py
index 130f730..30f063b 100644
--- a/lib/py/src/server/TServer.py
+++ b/lib/py/src/server/TServer.py
@@ -31,7 +31,7 @@
 from thrift.transport import TTransport
 
 
-class TServer:
+class TServer(object):
   """Base interface for a server, which must have a serve() method.
 
   Three constructors for all servers: