diff --git a/requirements.txt b/requirements.txt
index 68e39d1..5d49349 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 steamship~=2.16.4
-langchain==0.0.152
\ No newline at end of file
+langchain==0.0.167
\ No newline at end of file
diff --git a/src/steamship_langchain/chat_models/openai.py b/src/steamship_langchain/chat_models/openai.py
index 0a7ab2d..50b24b3 100644
--- a/src/steamship_langchain/chat_models/openai.py
+++ b/src/steamship_langchain/chat_models/openai.py
@@ -280,3 +280,8 @@ def get_num_tokens_from_messages(self, messages: List[BaseMessage]) -> int:
         # every reply is primed with <im_start>assistant
         num_tokens += 3
         return num_tokens
+
+    @property
+    def _llm_type(self) -> str:
+        """Return type of chat model."""
+        return "openai-chat"