diff --git a/pkgs/development/python-modules/langchain-openai/default.nix b/pkgs/development/python-modules/langchain-openai/default.nix
index 7ed9579a7bc5..ac9d3fc90f50 100644
--- a/pkgs/development/python-modules/langchain-openai/default.nix
+++ b/pkgs/development/python-modules/langchain-openai/default.nix
@@ -28,14 +28,14 @@
 
 buildPythonPackage rec {
   pname = "langchain-openai";
-  version = "0.2.5";
+  version = "0.3.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain";
     tag = "langchain-openai==${version}";
-    hash = "sha256-Gm7MAOuG+kYQ3TRTRdQXJ+HcoUz+iL9j+pTXz+zAySg=";
+    hash = "sha256-WvHSeWdBuxbfMNmfoNMzEbhJ5rirQ4JwlWUa0Tgrlrg=";
   };
 
   sourceRoot = "${src.name}/libs/partners/openai";
@@ -83,6 +83,7 @@ buildPythonPackage rec {
     "test_chat_openai_get_num_tokens"
     "test_get_num_tokens_from_messages"
     "test_get_token_ids"
+    "test_init_o1"
     "test_openai_get_num_tokens"
   ];