diff --git a/src/neptune/new/metadata_containers/metadata_container.py b/src/neptune/new/metadata_containers/metadata_container.py
index 4a65d99c3..8c5f5859f 100644
--- a/src/neptune/new/metadata_containers/metadata_container.py
+++ b/src/neptune/new/metadata_containers/metadata_container.py
@@ -199,9 +199,10 @@ def stop(self, seconds: Optional[Union[float, int]] = None) -> None:
         self._bg_job.stop()
         self._bg_job.join(seconds)
         logger.info("Done!")
-        with self._lock:
-            sec_left = None if seconds is None else seconds - (time.time() - ts)
-            self._op_processor.stop(sec_left)
+
+        sec_left = None if seconds is None else seconds - (time.time() - ts)
+        self._op_processor.stop(sec_left)
+
         if self._mode != Mode.OFFLINE:
             logger.info("Explore the metadata in the Neptune app:")
             logger.info(self._metadata_url)