diff --git a/gui_client.py b/gui_client.py
index bfbdebd..21a7ad6 100644
--- a/gui_client.py
+++ b/gui_client.py
@@ -13,6 +13,7 @@ Plot       — time-series charts of all physical {value, unit} fields
 
 import json
 import socket
+import copy
 import sys
 import threading
 import time
@@ -163,7 +164,7 @@ class TcpReader(QObject):
                                     self._state = jay_merge_full(self._state, diff)
                                 else:
                                     self._state = data
-                                self.message.emit(dict(self._state))
+                                self.message.emit(copy.deepcopy(self._state))
                             else:
                                 self.message.emit(data)
                         except json.JSONDecodeError: