diff --git a/uv.lock b/uv.lock
index fd17b0da4b..9e926b153b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2271,7 +2271,7 @@ wheels = [
 
 [[package]]
 name = "langchain-classic"
-version = "1.0.3"
+version = "1.0.7"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "langchain-core" },
@@ -2282,9 +2282,9 @@ dependencies = [
     { name = "requests" },
     { name = "sqlalchemy" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/32/04/b01c09e37414bab9f209efa311502841a3c0de5bc6c35e729c8d8a9893c9/langchain_classic-1.0.3.tar.gz", hash = "sha256:168ef1dfbfb18cae5a9ff0accecc9413a5b5aa3464b53fa841561a3384b6324a", size = 10534933, upload-time = "2026-03-13T13:56:11.96Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/9b/78/84b5065816f348c39fefa4316f209f0135e8410216340a953bec17d9e4e4/langchain_classic-1.0.7.tar.gz", hash = "sha256:debbec8065e69b95108d2652e8d5c44f4516e19aa8d716c02ed2211c3aee099d", size = 10554118, upload-time = "2026-05-07T15:46:56.8Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/ab/e6/cfdeedec0537ffbf5041773590d25beb7f2aa467cc6630e788c9c7c72c3e/langchain_classic-1.0.3-py3-none-any.whl", hash = "sha256:26df1ec9806b1fbff19d9085a747ea7d8d82d7e3fb1d25132859979de627ef79", size = 1041335, upload-time = "2026-03-13T13:56:09.677Z" },
+    { url = "https://files.pythonhosted.org/packages/f5/78/2d9980d028ff0523eea503a77c200e2ff252a3a75eb6e7842bcf5f9c979b/langchain_classic-1.0.7-py3-none-any.whl", hash = "sha256:d9d9be38f7aa534ed0259c2410432e34a1f80b1d491e686749bb55af56479be3", size = 1041386, upload-time = "2026-05-07T15:46:54.845Z" },
 ]
 
 [[package]]
@@ -2312,10 +2312,11 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.31"
+version = "1.4.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
+    { name = "langchain-protocol" },
     { name = "langsmith" },
     { name = "packaging" },
     { name = "pydantic" },
@@ -2324,9 +2325,9 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/a1/5a/7523ff55668a233beef7e909e8e2074a1cc3b620e0bbf0a4ec5f38549b3b/langchain_core-1.2.31.tar.gz", hash = "sha256:aad3ecc9e4dce2dd2bb79526c81b92e5322fd81db7834a031cb80359f2e3ebaa", size = 850756, upload-time = "2026-04-16T13:26:29.241Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/59/de/679a53472c25860837e32c0442c962fa86e95317a36460e2c9d5c91b17c2/langchain_core-1.4.0.tar.gz", hash = "sha256:1dc341eed802ed9c117c0df3923c991e5e9e226571e5725c194eeb5bd93d1a7f", size = 920260, upload-time = "2026-05-11T18:42:35.919Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/52/02/668ddf4f1cf963ad691bdbea672a85244e6271eb0a4acfaf662bbd94a3b1/langchain_core-1.2.31-py3-none-any.whl", hash = "sha256:c407193edb99311cc36ec3e4d3667a065bbc4d7d72fbb6e368538b9b134d4033", size = 513264, upload-time = "2026-04-16T13:26:27.566Z" },
+    { url = "https://files.pythonhosted.org/packages/0f/1a/86c38c27b81913a1c6c12448cab55defb5a1097c7dc9a4cea83f55477a2d/langchain_core-1.4.0-py3-none-any.whl", hash = "sha256:23cbbdb46e38ddd1dd5247e6167e96013eae74bea4c5949c550809970a9e565c", size = 548120, upload-time = "2026-05-11T18:42:33.992Z" },
 ]
 
 [[package]]
@@ -2374,6 +2375,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/0b/fa/8c33befbc0cf81b21371cc1dab4e7bf94a80b8116194f263a5021ec02529/langchain_openai-1.1.14-py3-none-any.whl", hash = "sha256:cb525d2011f9813fc15a7dcfd4bca5b87badcbcb2c113a7fbe45d1b8a1bbb69c", size = 88705, upload-time = "2026-04-16T14:55:23.159Z" },
 ]
 
+[[package]]
+name = "langchain-protocol"
+version = "0.0.15"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/4f/24/9777489d6fbbee64af0c8f96d4f840239c408cf694f3394672807dafc490/langchain_protocol-0.0.15.tar.gz", hash = "sha256:9ab2d11ee73944754f10e037e717098d3a6796f0e58afa9cadda6154e7655ade", size = 5862, upload-time = "2026-05-01T22:30:04.748Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/1d/7a/9c97a7b9cbe4c5dc6a44cdb1545450c28f0c8ce89b9c1f0ee7fbad896263/langchain_protocol-0.0.15-py3-none-any.whl", hash = "sha256:461eb794358f83d5e42635a5797799ffec7b4702314e34edf73ac21e75d3ef79", size = 6982, upload-time = "2026-05-01T22:30:03.877Z" },
+]
+
 [[package]]
 name = "langchain-text-splitters"
 version = "1.1.2"