diff --git a/docs/extras/guides/langsmith/walkthrough.ipynb b/docs/extras/guides/langsmith/walkthrough.ipynb
index 8bb89fdd84..ee40a07a38 100644
--- a/docs/extras/guides/langsmith/walkthrough.ipynb
+++ b/docs/extras/guides/langsmith/walkthrough.ipynb
@@ -73,8 +73,8 @@
             "metadata": {},
             "outputs": [],
             "source": [
-                "# %pip install -U langchain langsmith langchainhub --quiet\n",
-                "# %pip install openai pandas duckduckgo-search --quiet"
+                "%pip install -U langchain langsmith langchainhub --quiet\n",
+                "%pip install openai tiktoken pandas duckduckgo-search --quiet"
             ]
         },
         {