diff -r 87f670154294 -r 3e219f00151a runtime/PyroServer.py
--- a/runtime/PyroServer.py	Thu May 18 00:04:03 2023 +0200
+++ b/runtime/PyroServer.py	Sat May 20 00:33:22 2023 +0200
@@ -20,6 +20,8 @@
 import runtime
 from runtime.ServicePublisher import ServicePublisher
 
+Pyro5.config.SERIALIZER = "msgpack"
+
 def make_pyro_exposed_stub(method_name):
     stub = lambda self, *args, **kwargs: \
         getattr(self.plc_object_instance, method_name)(*args, **kwargs)