diff --git a/pr_agent/algo/ai_handlers/langchain_ai_handler.py b/pr_agent/algo/ai_handlers/langchain_ai_handler.py
index 5c793f2b..3e31bcb8 100644
--- a/pr_agent/algo/ai_handlers/langchain_ai_handler.py
+++ b/pr_agent/algo/ai_handlers/langchain_ai_handler.py
@@ -1,5 +1,8 @@
-from langchain.chat_models import ChatOpenAI
-from langchain.schema import SystemMessage, HumanMessage
+try:
+    from langchain.chat_models import ChatOpenAI
+    from langchain.schema import SystemMessage, HumanMessage
+except: # we don't enforce langchain as a dependency, so if it's not installed, just move on
+    pass
 
 from pr_agent.algo.ai_handlers.base_ai_handler import BaseAiHandler
 from pr_agent.config_loader import get_settings
diff --git a/requirements.txt b/requirements.txt
index 1f97ed7f..b293f3b3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,4 +23,4 @@ starlette-context==0.3.6
 tiktoken==0.5.2
 ujson==5.8.0
 uvicorn==0.22.0
-langchain==0.0.349
+# langchain==0.0.349 # uncomment this to support language LangChainOpenAIHandler