diff --git a/pkgs/development/python-modules/langchain-community/default.nix b/pkgs/development/python-modules/langchain-community/default.nix
index 0c3b7b59f61a..1790e26f585d 100644
--- a/pkgs/development/python-modules/langchain-community/default.nix
+++ b/pkgs/development/python-modules/langchain-community/default.nix
@@ -17,7 +17,7 @@
 
 buildPythonPackage rec {
   pname = "langchain-community";
-  version = "0.0.21";
+  version = "0.0.24";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -25,7 +25,7 @@ buildPythonPackage rec {
   src = fetchPypi {
     pname = "langchain_community";
     inherit version;
-    hash = "sha256-HDEKfiZj1fZGSkM5gVBIlPl8Eng8vri99BWaV0+IwY0=";
+    hash = "sha256-/WCfbJYsykt7dfIVnx+/dLFP3UUBHuK+U+ldtOZ4g38=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/python-modules/langchain-core/default.nix b/pkgs/development/python-modules/langchain-core/default.nix
index 27252c4b3938..9196aef28b5d 100644
--- a/pkgs/development/python-modules/langchain-core/default.nix
+++ b/pkgs/development/python-modules/langchain-core/default.nix
@@ -16,7 +16,7 @@
 
 buildPythonPackage rec {
   pname = "langchain-core";
-  version = "0.1.24";
+  version = "0.1.26";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -24,7 +24,7 @@ buildPythonPackage rec {
   src = fetchPypi {
     pname = "langchain_core";
     inherit version;
-    hash = "sha256-znD0uXaV61VjfgDuM9SA//xtsflXJvmbB2tVyxpCkn0=";
+    hash = "sha256-YYZ1jWIBVyOqxn7xogVWldA+gsTdQHQheXWwxi+vSxc=";
   };
 
   pythonRelaxDeps = [
diff --git a/pkgs/development/python-modules/langchain/default.nix b/pkgs/development/python-modules/langchain/default.nix
index 50d86398ebcf..a8da3cce93cd 100644
--- a/pkgs/development/python-modules/langchain/default.nix
+++ b/pkgs/development/python-modules/langchain/default.nix
@@ -51,7 +51,7 @@
 
 buildPythonPackage rec {
   pname = "langchain";
-  version = "0.1.8";
+  version = "0.1.9";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -60,7 +60,7 @@ buildPythonPackage rec {
     owner = "langchain-ai";
     repo = "langchain";
     rev = "refs/tags/v${version}";
-    hash = "sha256-zZkz7KlRikUySLlGyoc2a+DRhPahjytV5AowpU8yiRg=";
+    hash = "sha256-AgEze4JUo3i6HCg541tz/gV6g+zrueyOljy/TXUYBV4=";
   };
 
   sourceRoot = "${src.name}/libs/langchain";
diff --git a/pkgs/development/python-modules/langsmith/default.nix b/pkgs/development/python-modules/langsmith/default.nix
index 5f3bb399f99a..919e64a3cf44 100644
--- a/pkgs/development/python-modules/langsmith/default.nix
+++ b/pkgs/development/python-modules/langsmith/default.nix
@@ -3,17 +3,19 @@
 , buildPythonPackage
 , fetchFromGitHub
 , freezegun
+, orjson
 , poetry-core
 , pydantic
 , pytest-asyncio
 , pytestCheckHook
 , pythonOlder
+, pythonRelaxDepsHook
 , requests
 }:
 
 buildPythonPackage rec {
   pname = "langsmith";
-  version = "0.1.3";
+  version = "0.1.6";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -22,16 +24,22 @@ buildPythonPackage rec {
     owner = "langchain-ai";
     repo = "langsmith-sdk";
     rev = "refs/tags/v${version}";
-    hash = "sha256-apczSNhj39Av5gsIM0QPF9eus3Z4eCv/ztxjHDgG8E0=";
+    hash = "sha256-IjKlyfYA7HH+fXPsV5lWd8BOXooJFZy0WxkUy2lm4bI=";
   };
 
   sourceRoot = "${src.name}/python";
 
+  pythonRelaxDeps = [
+    "orjson"
+  ];
+
   nativeBuildInputs = [
     poetry-core
+    pythonRelaxDepsHook
   ];
 
   propagatedBuildInputs = [
+    orjson
     pydantic
     requests
   ];