diff --git a/cli/polyaxon/_client/workers/base_worker.py b/cli/polyaxon/_client/workers/base_worker.py
index 5fb436b7..0c315f8f 100644
--- a/cli/polyaxon/_client/workers/base_worker.py
+++ b/cli/polyaxon/_client/workers/base_worker.py
@@ -31,7 +31,7 @@ def start(self):
         try:
             if not self.is_alive():
                 self._thread = threading.Thread(target=self._target, name=self.NAME)
-                self._thread.setDaemon(True)
+                self._thread.daemon = True
                 self._thread.start()
                 self._thread_for_pid = os.getpid()
         finally: