diff --git a/libs/core/pyproject.toml b/libs/core/pyproject.toml
index 8fb42b4a0c8..f0a8a09f228 100644
--- a/libs/core/pyproject.toml
+++ b/libs/core/pyproject.toml
@@ -2,15 +2,6 @@
 requires = ["pdm-backend"]
 build-backend = "pdm.backend"
 
-[tool.poetry]
-name = "langchain-core"
-version = "0.3.33"
-description = "Building applications with LLMs through composability"
-authors = []
-license = "MIT"
-readme = "README.md"
-repository = "https://github.com/langchain-ai/langchain"
-
 [tool.mypy]
 exclude = [ "notebooks", "examples", "example_data", "langchain_core/pydantic", "tests/unit_tests/utils/test_function_calling.py",]
 disallow_untyped_defs = "True"
@@ -21,27 +12,6 @@ ignore_missing_imports = true
 [tool.ruff]
 target-version = "py39"
 
-[tool.poetry.urls]
-"Source Code" = "https://github.com/langchain-ai/langchain/tree/master/libs/core"
-"Release Notes" = "https://github.com/langchain-ai/langchain/releases?q=tag%3A%22langchain-core%3D%3D0%22&expanded=true"
-
-[tool.poetry.dependencies]
-python = ">=3.9,<4.0"
-langsmith = ">=0.1.125,<0.4"
-tenacity = ">=8.1.0,!=8.4.0,<10.0.0"
-jsonpatch = "^1.33"
-PyYAML = ">=5.3"
-packaging = ">=23.2,<25"
-typing-extensions = ">=4.7"
-[[tool.poetry.dependencies.pydantic]]
-version = "^2.5.2"
-python = "<3.12.4"
-
-[[tool.poetry.dependencies.pydantic]]
-version = "^2.7.4"
-python = ">=3.12.4"
-
-[tool.poetry.extras]
 
 [tool.ruff.lint]
 select = [ "ASYNC", "B", "C4", "COM", "DJ", "E", "EM", "EXE", "F", "FLY", "FURB", "I", "ICN", "INT", "LOG", "N", "NPY", "PD", "PIE", "Q", "RSE", "S", "SIM", "SLOT", "T10", "T201", "TID", "TRY", "UP", "W", "YTT",]
@@ -56,21 +26,6 @@ markers = [ "requires: mark tests as requiring a specific library", "compile: ma
 asyncio_mode = "auto"
 filterwarnings = [ "ignore::langchain_core._api.beta_decorator.LangChainBetaWarning",]
 
-[tool.poetry.group.lint]
-optional = true
-
-[tool.poetry.group.typing]
-optional = true
-
-[tool.poetry.group.dev]
-optional = true
-
-[tool.poetry.group.test]
-optional = true
-
-[tool.poetry.group.test_integration]
-optional = true
-
 [tool.ruff.lint.pep8-naming]
 classmethod-decorators = [ "classmethod", "langchain_core.utils.pydantic.pre_init", "pydantic.field_validator", "pydantic.v1.root_validator",]
 
@@ -81,74 +36,6 @@ classmethod-decorators = [ "classmethod", "langchain_core.utils.pydantic.pre_ini
 "tests/**" = [ "S",]
 "scripts/**" = [ "S",]
 
-[tool.poetry.group.lint.dependencies]
-ruff = "^0.9.2"
-
-
-
-
-
-[tool.poetry.group.typing.dependencies]
-mypy = ">=1.10,<1.11"
-types-pyyaml = "^6.0.12.2"
-types-requests = "^2.28.11.5"
-types-jinja2 = "^2.11.9"
-
-
-
-
-
-[tool.poetry.group.dev.dependencies]
-jupyter = "^1.0.0"
-setuptools = "^67.6.1"
-grandalf = "^0.8"
-
-
-
-
-
-[tool.poetry.group.test.dependencies]
-pytest = "^8"
-freezegun = "^1.2.2"
-pytest-mock = "^3.10.0"
-syrupy = "^4.0.2"
-pytest-watcher = "^0.3.4"
-pytest-asyncio = "^0.21.1"
-grandalf = "^0.8"
-responses = "^0.25.0"
-pytest-socket = "^0.7.0"
-pytest-xdist = "^3.6.1"
-blockbuster = "~1.5.11"
-[[tool.poetry.group.test.dependencies.numpy]]
-version = "^1.24.0"
-python = "<3.12"
-
-[[tool.poetry.group.test.dependencies.numpy]]
-version = ">=1.26.0,<3"
-python = ">=3.12"
-
-
-
-
-
-[tool.poetry.group.test_integration.dependencies]
-
-
-
-
-
-[tool.poetry.group.typing.dependencies.langchain-text-splitters]
-path = "../text-splitters"
-develop = true
-
-
-
-
-
-[tool.poetry.group.test.dependencies.langchain-tests]
-path = "../standard-tests"
-develop = true
-
 
 [tool.pdm.dev-dependencies]
 lint = [
diff --git a/libs/langchain/pyproject.toml b/libs/langchain/pyproject.toml
index 877ac364822..c25cb2685c2 100644
--- a/libs/langchain/pyproject.toml
+++ b/libs/langchain/pyproject.toml
@@ -2,15 +2,6 @@
 requires = ["pdm-backend"]
 build-backend = "pdm.backend"
 
-[tool.poetry]
-name = "langchain"
-version = "0.3.17"
-description = "Building applications with LLMs through composability"
-authors = []
-license = "MIT"
-readme = "README.md"
-repository = "https://github.com/langchain-ai/langchain"
-
 [tool.ruff]
 target-version = "py39"
 exclude = [ "tests/integration_tests/examples/non-utf8-encoding.py",]
@@ -25,32 +16,6 @@ skip = ".git,*.pdf,*.svg,*.pdf,*.yaml,*.ipynb,poetry.lock,*.min.js,*.css,package
 ignore-regex = ".*(Stati Uniti|Tense=Pres).*"
 ignore-words-list = "momento,collison,ned,foor,reworkd,parth,whats,aapply,mysogyny,unsecure,damon,crate,aadd,symbl,precesses,accademia,nin"
 
-[tool.poetry.urls]
-"Source Code" = "https://github.com/langchain-ai/langchain/tree/master/libs/langchain"
-"Release Notes" = "https://github.com/langchain-ai/langchain/releases?q=tag%3A%22langchain%3D%3D0%22&expanded=true"
-
-[tool.poetry.scripts]
-langchain-server = "langchain.server:main"
-
-[tool.poetry.dependencies]
-python = ">=3.9,<4.0"
-langchain-core = "^0.3.33"
-langchain-text-splitters = "^0.3.3"
-langsmith = ">=0.1.17,<0.4"
-pydantic = "^2.7.4"
-SQLAlchemy = ">=1.4,<3"
-requests = "^2"
-PyYAML = ">=5.3"
-aiohttp = "^3.8.3"
-tenacity = ">=8.1.0,!=8.4.0,<10"
-[[tool.poetry.dependencies.numpy]]
-version = ">=1.22.4,<2"
-python = "<3.12"
-
-[[tool.poetry.dependencies.numpy]]
-version = ">=1.26.2,<3"
-python = ">=3.12"
-
 [tool.ruff.lint]
 select = [ "E", "F", "I", "T201", "D",]
 pydocstyle = { convention = "google" }
@@ -68,127 +33,6 @@ markers = [ "requires: mark tests as requiring a specific library", "scheduled:
 asyncio_mode = "auto"
 filterwarnings = [ "ignore::langchain_core._api.beta_decorator.LangChainBetaWarning", "ignore::langchain_core._api.deprecation.LangChainDeprecationWarning:tests", "ignore::langchain_core._api.deprecation.LangChainPendingDeprecationWarning:tests",]
 
-[tool.poetry.dependencies.async-timeout]
-version = "^4.0.0"
-python = "<3.11"
-
-[tool.poetry.group.test]
-optional = true
-
-[tool.poetry.group.codespell]
-optional = true
-
-[tool.poetry.group.test_integration]
-optional = true
-
-[tool.poetry.group.lint]
-optional = true
-
-[tool.poetry.group.typing]
-optional = true
-
-[tool.poetry.group.dev]
-optional = true
-
-[tool.poetry.group.test.dependencies]
-pytest = "^8"
-pytest-cov = "^4.0.0"
-pytest-dotenv = "^0.5.2"
-duckdb-engine = "^0.9.2"
-pytest-watcher = "^0.2.6"
-freezegun = "^1.2.2"
-responses = "^0.22.0"
-pytest-asyncio = "^0.23.2"
-lark = "^1.1.5"
-pandas = "^2.0.0"
-pytest-mock = "^3.10.0"
-pytest-socket = "^0.6.0"
-syrupy = "^4.0.2"
-requests-mock = "^1.11.0"
-pytest-xdist = "^3.6.1"
-[[tool.poetry.group.test.dependencies.cffi]]
-version = "<1.17.1"
-python = "<3.10"
-
-[[tool.poetry.group.test.dependencies.cffi]]
-version = "*"
-python = ">=3.10"
-
-[tool.poetry.group.codespell.dependencies]
-codespell = "^2.2.0"
-
-[tool.poetry.group.test_integration.dependencies]
-pytest-vcr = "^1.0.2"
-wrapt = "^1.15.0"
-python-dotenv = "^1.0.0"
-cassio = "^0.1.0"
-langchainhub = "^0.1.16"
-
-[tool.poetry.group.lint.dependencies]
-ruff = "^0.9.2"
-[[tool.poetry.group.lint.dependencies.cffi]]
-version = "<1.17.1"
-python = "<3.10"
-
-[[tool.poetry.group.lint.dependencies.cffi]]
-version = "*"
-python = ">=3.10"
-
-[tool.poetry.group.typing.dependencies]
-mypy = "^1.10"
-types-pyyaml = "^6.0.12.2"
-types-requests = "^2.28.11.5"
-types-toml = "^0.10.8.1"
-types-redis = "^4.3.21.6"
-types-pytz = "^2023.3.0.0"
-types-chardet = "^5.0.4.6"
-mypy-protobuf = "^3.0.0"
-
-[tool.poetry.group.dev.dependencies]
-jupyter = "^1.0.0"
-playwright = "^1.28.0"
-setuptools = "^67.6.1"
-
-[tool.poetry.group.test.dependencies.langchain-tests]
-path = "../standard-tests"
-develop = true
-
-[tool.poetry.group.test.dependencies.langchain-core]
-path = "../core"
-develop = true
-
-[tool.poetry.group.test.dependencies.langchain-text-splitters]
-path = "../text-splitters"
-develop = true
-
-[tool.poetry.group.test.dependencies.langchain-openai]
-path = "../partners/openai"
-optional = true
-develop = true
-
-[tool.poetry.group.test_integration.dependencies.langchain-core]
-path = "../core"
-develop = true
-
-[tool.poetry.group.test_integration.dependencies.langchain-text-splitters]
-path = "../text-splitters"
-develop = true
-
-[tool.poetry.group.typing.dependencies.langchain-core]
-path = "../core"
-develop = true
-
-[tool.poetry.group.typing.dependencies.langchain-text-splitters]
-path = "../text-splitters"
-develop = true
-
-[tool.poetry.group.dev.dependencies.langchain-core]
-path = "../core"
-develop = true
-
-[tool.poetry.group.dev.dependencies.langchain-text-splitters]
-path = "../text-splitters"
-develop = true
 
 [tool.pdm.dev-dependencies]
 test = [