diff --git a/trulens_eval/examples/quickstart/langchain_async.ipynb b/trulens_eval/examples/quickstart/langchain_async.ipynb
index 35d96ce51..47907097d 100644
--- a/trulens_eval/examples/quickstart/langchain_async.ipynb
+++ b/trulens_eval/examples/quickstart/langchain_async.ipynb
@@ -29,6 +29,7 @@
    "outputs": [],
    "source": [
     "# ! pip install trulens_eval==0.18.0 langchain>=0.0.335"
+
    ]
   },
   {