diff --git a/universal_deep_transformer/ask_pubmed.ipynb b/universal_deep_transformer/ask_pubmed.ipynb
index a6a100b..48928a3 100644
--- a/universal_deep_transformer/ask_pubmed.ipynb
+++ b/universal_deep_transformer/ask_pubmed.ipynb
@@ -27,8 +27,7 @@
     "!pip3 install \"paper-qa<=3.13.4\"\n",
     "!pip3 install langchain\n",
     "!pip3 install json\n",
-    "!pip3 install transformers\n",
-    "!pip3 install langchain_community"
+    "!pip3 install transformers"
    ]
   },
   {