diff --git a/docs/docs/how_to/document_loader_markdown.ipynb b/docs/docs/how_to/document_loader_markdown.ipynb
index b68d4eadc1..a5a3e01388 100644
--- a/docs/docs/how_to/document_loader_markdown.ipynb
+++ b/docs/docs/how_to/document_loader_markdown.ipynb
@@ -26,7 +26,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "%pip install \"unstructured[md]\""
+    "%pip install \"unstructured[md]\" nltk"
    ]
   },
   {