diff --git a/libs/kotaemon/pyproject.toml b/libs/kotaemon/pyproject.toml
index ac099a0..291e8b9 100644
--- a/libs/kotaemon/pyproject.toml
+++ b/libs/kotaemon/pyproject.toml
@@ -32,7 +32,7 @@ dependencies = [
     "html2text==2024.2.26",
     "langchain>=0.3,<0.4",
     "langchain-community>=0.2,<0.4",
-    "langchain-openai>=0.2.0,<0.4.0",
+    "langchain-openai>=0.2.0,<1.2.0",
     "langchain-google-genai>=2.0.0,<3.0.0",
     "langchain-anthropic",
     "langchain-ollama",