diff --git a/poetry.lock b/poetry.lock
index d3d153410..61ff075e6 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -3751,4 +3751,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.9.0,<4.0"
-content-hash = "d3249f92a4868cf796f4e0a51f8c154ac36692560505ba58574edf080ceafc9b"
+content-hash = "faf7cebfb8e64c2edefb69bacdbdd10d8399ea8b3ba9f46c4383e72bd3cd925a"
diff --git a/pyproject.toml b/pyproject.toml
index e57b839c6..c7a1cdf17 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,6 +24,7 @@ pytest-mock  = "^3.10.0"
 syrupy = "^4.0.2"
 httpx = "^0.26.0"
 pytest-watcher = "^0.3.4"
+langchain = "^0.1.0"
 
 [tool.poetry.group.lint.dependencies]
 ruff = "^0.1.4"