diff --git a/nvflare/private/fed/client/client_executor.py b/nvflare/private/fed/client/client_executor.py
index ac5561cb915..6465122805b 100644
--- a/nvflare/private/fed/client/client_executor.py
+++ b/nvflare/private/fed/client/client_executor.py
@@ -24,8 +24,8 @@
 
 from nvflare.apis.fl_constant import AdminCommandNames, ReturnCode
 from nvflare.apis.shareable import Shareable, make_reply
+from nvflare.apis.utils.common_utils import get_open_ports
 from nvflare.fuel.utils.pipe.file_pipe import FilePipe
-
 from .client_status import ClientStatus, get_status_message
 
 
@@ -147,7 +147,7 @@ def __init__(self, uid, startup):
         self.conn_client = None
         # self.pool = None
 
-        self.listen_port = 6000
+        self.listen_port = get_open_ports(1)[0]
 
         self.lock = threading.Lock()