diff --git a/pkgs/development/python-modules/langchain/default.nix b/pkgs/development/python-modules/langchain/default.nix
index e14f008d0cb7..c2fabc40c03a 100644
--- a/pkgs/development/python-modules/langchain/default.nix
+++ b/pkgs/development/python-modules/langchain/default.nix
@@ -42,7 +42,6 @@
 , librosa
 , lxml
 , manifest-ml
-, markdownify
 , neo4j
 , networkx
 , nlpcloud
@@ -76,8 +75,8 @@
 , pytest-asyncio
 , pytest-mock
 , pytest-socket
-, pytest-vcr
 , pytestCheckHook
+, requests-mock
 , responses
 , syrupy
 , toml
@@ -85,7 +84,7 @@
 
 buildPythonPackage rec {
   pname = "langchain";
-  version = "0.0.325";
+  version = "0.0.334";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -94,7 +93,7 @@ buildPythonPackage rec {
     owner = "hwchase17";
     repo = "langchain";
     rev = "refs/tags/v${version}";
-    hash = "sha256-/bk4RafDDL4nozyFOiikyU4auBSftej21m5/FnEtDog=";
+    hash = "sha256-mXPqc8wF9DhEtITm8h5R9kHBcMJ7AEK4kL5Z7V2p8NE=";
   };
 
   sourceRoot = "${src.name}/libs/langchain";
@@ -253,21 +252,22 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     freezegun
-    markdownify
+    lark
     pandas
     pytest-asyncio
     pytest-mock
     pytest-socket
-    pytest-vcr
     pytestCheckHook
+    requests-mock
     responses
     syrupy
     toml
-  ] ++ passthru.optional-dependencies.all;
+  ];
 
   pytestFlagsArray = [
     # integration_tests have many network, db access and require `OPENAI_API_KEY`, etc.
     "tests/unit_tests"
+    "--only-core"
   ];
 
   disabledTests = [
@@ -279,6 +279,10 @@ buildPythonPackage rec {
     "test_socket_disabled"
   ];
 
+  pythonImportsCheck = [
+    "langchain"
+  ];
+
   meta = with lib; {
     description = "Building applications with LLMs through composability";
     homepage = "https://github.com/hwchase17/langchain";
diff --git a/pkgs/development/python-modules/langsmith/default.nix b/pkgs/development/python-modules/langsmith/default.nix
index a2961ccf6400..3b81c6128887 100644
--- a/pkgs/development/python-modules/langsmith/default.nix
+++ b/pkgs/development/python-modules/langsmith/default.nix
@@ -12,7 +12,7 @@
 
 buildPythonPackage rec {
   pname = "langsmith";
-  version = "0.0.57";
+  version = "0.0.63";
   format = "pyproject";
 
   disabled = pythonOlder "3.8";
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     owner = "langchain-ai";
     repo = "langsmith-sdk";
     rev = "refs/tags/v${version}";
-    hash = "sha256-3P0vB7wz/K3skejyPwtFZN17mFrOw9TGLHTJHvu4m7M=";
+    hash = "sha256-KE+WMnuWAq1stZuuwZkOPOKQ2lZNKtxzNbZMRoOdmz0=";
   };
 
   sourceRoot = "${src.name}/python";
@@ -60,6 +60,8 @@ buildPythonPackage rec {
     "langsmith"
   ];
 
+  __darwinAllowLocalNetworking = true;
+
   meta = with lib; {
     description = "Client library to connect to the LangSmith LLM Tracing and Evaluation Platform";
     homepage = "https://github.com/langchain-ai/langsmith-sdk";