diff --git a/pkgs/development/python-modules/langchain-aws/default.nix b/pkgs/development/python-modules/langchain-aws/default.nix
index a3ca3be192d9..27a5be2beaf0 100644
--- a/pkgs/development/python-modules/langchain-aws/default.nix
+++ b/pkgs/development/python-modules/langchain-aws/default.nix
@@ -8,11 +8,13 @@
 
   # dependencies
   boto3,
-  langchain,
   langchain-core,
   numpy,
   pydantic,
 
+  # tests
+  langchain,
+
   # optional-dependencies
   anthropic,
   langchain-anthropic,
@@ -51,7 +53,6 @@ buildPythonPackage (finalAttrs: {
 
   dependencies = [
     boto3
-    langchain
     langchain-core
     numpy
     pydantic
@@ -70,6 +71,7 @@ buildPythonPackage (finalAttrs: {
 
   nativeCheckInputs = [
     anthropic
+    langchain
     langchain-tests
     pytest-asyncio
     pytest-cov-stub
diff --git a/pkgs/development/python-modules/langchain-classic/default.nix b/pkgs/development/python-modules/langchain-classic/default.nix
index fab7fe6d5d14..efef505de075 100644
--- a/pkgs/development/python-modules/langchain-classic/default.nix
+++ b/pkgs/development/python-modules/langchain-classic/default.nix
@@ -99,6 +99,8 @@ buildPythonPackage (finalAttrs: {
   disabledTests = [
     # Network access (web.example.com)
     "test_socket_disabled"
+    # Fails due to JSON formatting differences
+    "test_configurable"
   ];
 
   # Bulk updater selects wrong tag
diff --git a/pkgs/development/python-modules/langchain-community/default.nix b/pkgs/development/python-modules/langchain-community/default.nix
index c6b904a7259a..67f3e1488e35 100644
--- a/pkgs/development/python-modules/langchain-community/default.nix
+++ b/pkgs/development/python-modules/langchain-community/default.nix
@@ -5,11 +5,10 @@
   pythonAtLeast,
 
   # build-system
-  pdm-backend,
+  hatchling,
 
   # dependencies
   aiohttp,
-  dataclasses-json,
   httpx-sse,
   langchain-classic,
   langchain-core,
@@ -23,11 +22,9 @@
 
   # tests
   blockbuster,
-  duckdb,
-  duckdb-engine,
-  httpx,
   langchain-tests,
   lark,
+  mypy-extensions,
   pandas,
   pytest-asyncio,
   pytest-mock,
@@ -43,19 +40,19 @@
 
 buildPythonPackage rec {
   pname = "langchain-community";
-  version = "0.4.1";
+  version = "0.4.2";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain-community";
     tag = "libs/community/v${version}";
-    hash = "sha256-N92YDmej2shQQlktr0veFOKyGFWemFj0hdJIYu1rYSc=";
+    hash = "sha256-I9xULsg+tlXM3Brh6Xa5xvFENx8zn4FRZ1/evNEh8UY=";
   };
 
   sourceRoot = "${src.name}/libs/community";
 
-  build-system = [ pdm-backend ];
+  build-system = [ hatchling ];
 
   # Only needed for mixed python 3.12/3.13 builds
   pythonRelaxDeps = [
@@ -64,7 +61,6 @@ buildPythonPackage rec {
 
   dependencies = [
     aiohttp
-    dataclasses-json
     httpx-sse
     langchain-classic
     langchain-core
@@ -81,11 +77,9 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     blockbuster
-    duckdb
-    duckdb-engine
-    httpx
     langchain-tests
     lark
+    mypy-extensions
     pandas
     pytest-asyncio
     pytest-mock
diff --git a/pkgs/development/python-modules/langchain-core/default.nix b/pkgs/development/python-modules/langchain-core/default.nix
index 4d65b64a3881..0585fb37a81e 100644
--- a/pkgs/development/python-modules/langchain-core/default.nix
+++ b/pkgs/development/python-modules/langchain-core/default.nix
@@ -37,7 +37,7 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "langchain-core";
-  version = "1.4.8";
+  version = "1.4.9";
   pyproject = true;
   __structuredAttrs = true;
 
@@ -45,7 +45,7 @@ buildPythonPackage (finalAttrs: {
     owner = "langchain-ai";
     repo = "langchain";
     tag = "langchain-core==${finalAttrs.version}";
-    hash = "sha256-fJKr1NlpCujGoVxxqjaEXGOVZO5NH9+71dWHyMuQ2jw=";
+    hash = "sha256-yOsft14mHlIaDQj2bhBAUISZCVXsyEtyNC9B7+5F0Oo=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/libs/core";
diff --git a/pkgs/development/python-modules/langchain-fireworks/default.nix b/pkgs/development/python-modules/langchain-fireworks/default.nix
index 0ef8a04a5377..f597d65d9109 100644
--- a/pkgs/development/python-modules/langchain-fireworks/default.nix
+++ b/pkgs/development/python-modules/langchain-fireworks/default.nix
@@ -11,7 +11,7 @@
   fireworks-ai,
   langchain-core,
   openai,
-  pydantic,
+  requests,
 
   # tests
   langchain-tests,
@@ -24,7 +24,7 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "langchain-fireworks";
-  version = "1.4.3";
+  version = "1.4.4";
   pyproject = true;
   __structuredAttrs = true;
   strictDeps = true;
@@ -33,7 +33,7 @@ buildPythonPackage (finalAttrs: {
     owner = "langchain-ai";
     repo = "langchain";
     tag = "langchain-fireworks==${finalAttrs.version}";
-    hash = "sha256-Z8KwSMq4kVCUVD9Cs8PU6ZRcC9ZG52dbeQrpYInt9L0=";
+    hash = "sha256-O63UohmChFeeQZH7G1iYDwNdvJapVEnHlkGHdGxIDjE=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/libs/partners/fireworks";
@@ -45,7 +45,7 @@ buildPythonPackage (finalAttrs: {
     fireworks-ai
     langchain-core
     openai
-    pydantic
+    requests
   ];
 
   pythonRelaxDeps = [
diff --git a/pkgs/development/python-modules/langchain-openai/default.nix b/pkgs/development/python-modules/langchain-openai/default.nix
index 9b3f0556bd2f..0422e76bb433 100644
--- a/pkgs/development/python-modules/langchain-openai/default.nix
+++ b/pkgs/development/python-modules/langchain-openai/default.nix
@@ -33,7 +33,7 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "langchain-openai";
-  version = "1.3.2";
+  version = "1.3.5";
   pyproject = true;
   __structuredAttrs = true;
 
@@ -41,13 +41,16 @@ buildPythonPackage (finalAttrs: {
     owner = "langchain-ai";
     repo = "langchain";
     tag = "langchain-openai==${finalAttrs.version}";
-    hash = "sha256-VmGbfciQlKBYgyUhFLUVzZaYSpEcK2pRokvsWrFpxaM=";
+    hash = "sha256-kfzfMldzWdhR785rfNPwI2T0u9ep66diQWYJeTpsdCM=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/libs/partners/openai";
 
   build-system = [ hatchling ];
 
+  # The python3Packages.openai update has to go through staging, so be open to newer versions
+  pythonRelaxDeps = [ "openai" ];
+
   dependencies = [
     langchain-core
     openai
diff --git a/pkgs/development/python-modules/langchain/default.nix b/pkgs/development/python-modules/langchain/default.nix
index 4ddce4e5a348..2fa86e71f0c0 100644
--- a/pkgs/development/python-modules/langchain/default.nix
+++ b/pkgs/development/python-modules/langchain/default.nix
@@ -46,7 +46,7 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "langchain";
-  version = "1.3.11";
+  version = "1.3.13";
   pyproject = true;
   __structuredAttrs = true;
 
@@ -54,7 +54,7 @@ buildPythonPackage (finalAttrs: {
     owner = "langchain-ai";
     repo = "langchain";
     tag = "langchain==${finalAttrs.version}";
-    hash = "sha256-ARLnl+HNsaFW7glyT3CEsNWvp9quvVkCpQvMLxgS2eI=";
+    hash = "sha256-KOid+tspI5cIcMl9SyACTClamY/Bs7xOi9n/zikbHiw=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/libs/langchain_v1";
diff --git a/pkgs/development/python-modules/langgraph-cli/default.nix b/pkgs/development/python-modules/langgraph-cli/default.nix
index ba04442c5ab8..1402c899abd2 100644
--- a/pkgs/development/python-modules/langgraph-cli/default.nix
+++ b/pkgs/development/python-modules/langgraph-cli/default.nix
@@ -27,7 +27,7 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "langgraph-cli";
-  version = "0.4.30";
+  version = "0.4.31";
   pyproject = true;
   __structuredAttrs = true;
 
@@ -35,7 +35,7 @@ buildPythonPackage (finalAttrs: {
     owner = "langchain-ai";
     repo = "langgraph";
     tag = "cli==${finalAttrs.version}";
-    hash = "sha256-wemTtMT8UbpEsGzf0fMnXdhJv0oTrG/TqEu6HhFN6nc=";
+    hash = "sha256-9q+/IKQcNT04WVSGU+ByoLxAPiUSbxPBhqI5uxpobHk=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/libs/cli";