diff --git a/poetry.lock b/poetry.lock
index e7c50ec..9d2a8f6 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.1.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.0.1 and should not be changed by hand.
 
 [[package]]
 name = "aioconsole"
@@ -13,7 +13,7 @@ files = [
 ]
 
 [package.extras]
-dev = ["pytest", "pytest-asyncio", "pytest-cov", "pytest-repeat", "uvloop ; platform_python_implementation != \"PyPy\" and sys_platform != \"win32\""]
+dev = ["pytest", "pytest-asyncio", "pytest-cov", "pytest-repeat", "uvloop"]
 
 [[package]]
 name = "annotated-types"
@@ -47,7 +47,7 @@ typing_extensions = {version = ">=4.5", markers = "python_version < \"3.13\""}
 
 [package.extras]
 doc = ["Sphinx (>=7.4,<8.0)", "packaging", "sphinx-autodoc-typehints (>=1.2.0)", "sphinx_rtd_theme"]
-test = ["anyio[trio]", "coverage[toml] (>=7)", "exceptiongroup (>=1.2.0)", "hypothesis (>=4.0)", "psutil (>=5.9)", "pytest (>=7.0)", "trustme", "truststore (>=0.9.1) ; python_version >= \"3.10\"", "uvloop (>=0.21) ; platform_python_implementation == \"CPython\" and platform_system != \"Windows\" and python_version < \"3.14\""]
+test = ["anyio[trio]", "coverage[toml] (>=7)", "exceptiongroup (>=1.2.0)", "hypothesis (>=4.0)", "psutil (>=5.9)", "pytest (>=7.0)", "trustme", "truststore (>=0.9.1)", "uvloop (>=0.21)"]
 trio = ["trio (>=0.26.1)"]
 
 [[package]]
@@ -335,7 +335,7 @@ files = [
 [package.extras]
 dev = ["Pygments", "build", "chardet", "pre-commit", "pytest", "pytest-cov", "pytest-dependency", "ruff", "tomli", "twine"]
 hard-encoding-detection = ["chardet"]
-toml = ["tomli ; python_version < \"3.11\""]
+toml = ["tomli"]
 types = ["chardet (>=5.1.0)", "mypy", "pytest", "pytest-cov", "pytest-dependency"]
 
 [[package]]
@@ -415,10 +415,10 @@ files = [
 cffi = {version = ">=1.12", markers = "platform_python_implementation != \"PyPy\""}
 
 [package.extras]
-docs = ["sphinx (>=5.3.0)", "sphinx-rtd-theme (>=3.0.0) ; python_version >= \"3.8\""]
+docs = ["sphinx (>=5.3.0)", "sphinx-rtd-theme (>=3.0.0)"]
 docstest = ["pyenchant (>=3)", "readme-renderer (>=30.0)", "sphinxcontrib-spelling (>=7.3.1)"]
-nox = ["nox (>=2024.4.15)", "nox[uv] (>=2024.3.2) ; python_version >= \"3.8\""]
-pep8test = ["check-sdist ; python_version >= \"3.8\"", "click (>=8.0.1)", "mypy (>=1.4)", "ruff (>=0.3.6)"]
+nox = ["nox (>=2024.4.15)", "nox[uv] (>=2024.3.2)"]
+pep8test = ["check-sdist", "click (>=8.0.1)", "mypy (>=1.4)", "ruff (>=0.3.6)"]
 sdist = ["build (>=1.0.0)"]
 ssh = ["bcrypt (>=3.1.5)"]
 test = ["certifi (>=2024)", "cryptography-vectors (==44.0.1)", "pretend (>=0.7)", "pytest (>=7.4.0)", "pytest-benchmark (>=4.0)", "pytest-cov (>=2.10.1)", "pytest-xdist (>=3.5.0)"]
@@ -543,7 +543,7 @@ httpcore = "==1.*"
 idna = "*"
 
 [package.extras]
-brotli = ["brotli ; platform_python_implementation == \"CPython\"", "brotlicffi ; platform_python_implementation != \"CPython\""]
+brotli = ["brotli", "brotlicffi"]
 cli = ["click (==8.*)", "pygments (==2.*)", "rich (>=10,<14)"]
 http2 = ["h2 (>=3,<5)"]
 socks = ["socksio (==1.*)"]
@@ -779,54 +779,55 @@ tiktoken = ">=0.7,<1"
 
 [[package]]
 name = "langgraph"
-version = "0.3.25"
+version = "0.4.7"
 description = "Building stateful, multi-actor applications with LLMs"
 optional = false
-python-versions = "<4.0,>=3.9.0"
+python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "langgraph-0.3.25-py3-none-any.whl", hash = "sha256:771fb4507aa9564e8eb31e96c4e7ad254dde33ac757188eb1d79f5b1fbdb05af"},
-    {file = "langgraph-0.3.25.tar.gz", hash = "sha256:78070c4ca3e160eaaf9ae2d62ef3c11b09bded6094e35a9ad75a608dc71cd299"},
+    {file = "langgraph-0.4.7-py3-none-any.whl", hash = "sha256:a925a3881fcd631eccf076994f41012e9320cd1adacc9aeb89ffcb3442b61f86"},
+    {file = "langgraph-0.4.7.tar.gz", hash = "sha256:8948a35f6f85805c8ac36e94d5492c86a34c39dcf6f405b0f84491bc444e3479"},
 ]
 
 [package.dependencies]
-langchain-core = ">=0.1,<0.4"
-langgraph-checkpoint = ">=2.0.10,<3.0.0"
-langgraph-prebuilt = ">=0.1.1,<0.2"
-langgraph-sdk = ">=0.1.42,<0.2.0"
-xxhash = ">=3.5.0,<4.0.0"
+langchain-core = ">=0.1"
+langgraph-checkpoint = ">=2.0.26"
+langgraph-prebuilt = ">=0.2.0"
+langgraph-sdk = ">=0.1.42"
+pydantic = ">=2.7.4"
+xxhash = ">=3.5.0"
 
 [[package]]
 name = "langgraph-checkpoint"
-version = "2.0.24"
+version = "2.0.26"
 description = "Library with base interfaces for LangGraph checkpoint savers."
 optional = false
-python-versions = "<4.0.0,>=3.9.0"
+python-versions = ">=3.9"
 groups = ["main", "dev"]
 files = [
-    {file = "langgraph_checkpoint-2.0.24-py3-none-any.whl", hash = "sha256:3836e2909ef2387d1fa8d04ee3e2a353f980d519fd6c649af352676dc73d66b8"},
-    {file = "langgraph_checkpoint-2.0.24.tar.gz", hash = "sha256:9596dad332344e7e871257be464df8a07c2e9bac66143081b11b9422b0167e5b"},
+    {file = "langgraph_checkpoint-2.0.26-py3-none-any.whl", hash = "sha256:ad4907858ed320a208e14ac037e4b9244ec1cb5aa54570518166ae8b25752cec"},
+    {file = "langgraph_checkpoint-2.0.26.tar.gz", hash = "sha256:2b800195532d5efb079db9754f037281225ae175f7a395523f4bf41223cbc9d6"},
 ]
 
 [package.dependencies]
-langchain-core = ">=0.2.38,<0.4"
+langchain-core = {version = ">=0.2.38", markers = "python_version < \"4.0\""}
 ormsgpack = ">=1.8.0,<2.0.0"
 
 [[package]]
 name = "langgraph-prebuilt"
-version = "0.1.8"
+version = "0.2.2"
 description = "Library with high-level APIs for creating and executing LangGraph agents and tools."
 optional = false
-python-versions = "<4.0.0,>=3.9.0"
+python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "langgraph_prebuilt-0.1.8-py3-none-any.whl", hash = "sha256:ae97b828ae00be2cefec503423aa782e1bff165e9b94592e224da132f2526968"},
-    {file = "langgraph_prebuilt-0.1.8.tar.gz", hash = "sha256:4de7659151829b2b955b6798df6800e580e617782c15c2c5b29b139697491831"},
+    {file = "langgraph_prebuilt-0.2.2-py3-none-any.whl", hash = "sha256:72de5ef1d969a8f02ad7adc7cc1915bb9b4467912d57ba60da34b5a70fdad1f6"},
+    {file = "langgraph_prebuilt-0.2.2.tar.gz", hash = "sha256:0a5d1f651f97c848cd1c3dd0ef017614f47ee74effb7375b59ac639e41b253f9"},
 ]
 
 [package.dependencies]
-langchain-core = ">=0.2.43,<0.3.0 || >0.3.0,<0.3.1 || >0.3.1,<0.3.2 || >0.3.2,<0.3.3 || >0.3.3,<0.3.4 || >0.3.4,<0.3.5 || >0.3.5,<0.3.6 || >0.3.6,<0.3.7 || >0.3.7,<0.3.8 || >0.3.8,<0.3.9 || >0.3.9,<0.3.10 || >0.3.10,<0.3.11 || >0.3.11,<0.3.12 || >0.3.12,<0.3.13 || >0.3.13,<0.3.14 || >0.3.14,<0.3.15 || >0.3.15,<0.3.16 || >0.3.16,<0.3.17 || >0.3.17,<0.3.18 || >0.3.18,<0.3.19 || >0.3.19,<0.3.20 || >0.3.20,<0.3.21 || >0.3.21,<0.3.22 || >0.3.22,<0.4.0"
-langgraph-checkpoint = ">=2.0.10,<3.0.0"
+langchain-core = ">=0.3.22"
+langgraph-checkpoint = ">=2.0.10"
 
 [[package]]
 name = "langgraph-sdk"
@@ -900,8 +901,8 @@ files = [
 
 [package.dependencies]
 numpy = [
-    {version = ">=1.23.3", markers = "python_version >= \"3.11\""},
-    {version = ">=1.21.2", markers = "python_version == \"3.10\""},
+    {version = ">=1.23.3", markers = "python_version >= \"3.11\" and python_version < \"3.12\""},
+    {version = ">=1.21.2", markers = "python_version >= \"3.10\" and python_version < \"3.11\""},
     {version = ">1.20", markers = "python_version < \"3.10\""},
     {version = ">=1.26.0", markers = "python_version >= \"3.12\""},
 ]
@@ -1377,7 +1378,7 @@ typing-extensions = ">=4.12.2"
 
 [package.extras]
 email = ["email-validator (>=2.0.0)"]
-timezone = ["tzdata ; python_version >= \"3.9\" and platform_system == \"Windows\""]
+timezone = ["tzdata"]
 
 [[package]]
 name = "pydantic-core"
@@ -1764,8 +1765,8 @@ cohere = ["cohere (>=4.44)"]
 mistralai = ["mistralai (>=1.0.0)"]
 nltk = ["nltk (>=3.8.1,<4.0.0)"]
 openai = ["openai (>=1.13.0,<2.0.0)"]
-ranx = ["ranx (>=0.3.0,<0.4.0) ; python_version >= \"3.10\""]
-sentence-transformers = ["scipy (<1.15) ; python_version < \"3.10\"", "scipy (>=1.15,<2.0) ; python_version >= \"3.10\"", "sentence-transformers (>=3.4.0,<4.0.0)"]
+ranx = ["ranx (>=0.3.0,<0.4.0)"]
+sentence-transformers = ["scipy (<1.15)", "scipy (>=1.15,<2.0)", "sentence-transformers (>=3.4.0,<4.0.0)"]
 vertexai = ["google-cloud-aiplatform (>=1.26,<2.0)", "protobuf (>=5.29.1,<6.0.0)"]
 voyageai = ["voyageai (>=0.2.2)"]
 
@@ -2145,7 +2146,7 @@ files = [
 ]
 
 [package.extras]
-brotli = ["brotli (>=1.0.9) ; platform_python_implementation == \"CPython\"", "brotlicffi (>=0.8.0) ; platform_python_implementation != \"CPython\""]
+brotli = ["brotli (>=1.0.9)", "brotlicffi (>=0.8.0)"]
 h2 = ["h2 (>=4,<5)"]
 socks = ["pysocks (>=1.5.6,!=1.5.7,<2.0)"]
 zstd = ["zstandard (>=0.18.0)"]
@@ -2488,4 +2489,4 @@ cffi = ["cffi (>=1.11)"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.9,<3.14"
-content-hash = "6be0e3ffba9fc06d6d9d53e865a7ce22bce8a67641f3969134bc80c2def01d22"
+content-hash = "f26b8d531e0d4652c8a0e902dff6167a41dd5f5615b4e62151f69c7d578b6306"
diff --git a/pyproject.toml b/pyproject.toml
index ca67fcf..ce1419b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ redis = "^5.2.1"
 python-ulid = "^3.0.0"
 
 [tool.poetry.group.dev.dependencies]
-langgraph = ">=0.3.0"
+langgraph = ">=0.3.0,<0.5.0"
 black = "^25.1.0"
 codespell = "^2.2.0"
 pytest = "^7.2.1"