diff --git a/poetry.lock b/poetry.lock
index 6a96b780c..438ef578d 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -229,20 +229,20 @@ tests-no-zope = ["attrs[tests-mypy]", "cloudpickle", "hypothesis", "pympler", "p
 
 [[package]]
 name = "beartype"
-version = "0.14.1"
+version = "0.18.5"
 description = "Unbearably fast runtime type checking in pure Python."
 optional = false
-python-versions = ">=3.7.0"
+python-versions = ">=3.8.0"
 files = [
-    {file = "beartype-0.14.1-py3-none-any.whl", hash = "sha256:0f70fccdb8eb6d7ddfaa3ffe3a0b66cf2edeb13452bd71ad46615775c2fa34f6"},
-    {file = "beartype-0.14.1.tar.gz", hash = "sha256:23df4715d19cebb2ce60e53c3cf44cd925843f00c71938222d777ea6332de3cb"},
+    {file = "beartype-0.18.5-py3-none-any.whl", hash = "sha256:5301a14f2a9a5540fe47ec6d34d758e9cd8331d36c4760fc7a5499ab86310089"},
+    {file = "beartype-0.18.5.tar.gz", hash = "sha256:264ddc2f1da9ec94ff639141fbe33d22e12a9f75aa863b83b7046ffff1381927"},
 ]
 
 [package.extras]
 all = ["typing-extensions (>=3.10.0.0)"]
-dev = ["autoapi (>=0.9.0)", "coverage (>=5.5)", "mypy (>=0.800)", "numpy", "pandera", "pydata-sphinx-theme (<=0.7.2)", "pytest (>=4.0.0)", "sphinx", "sphinx (>=4.2.0,<6.0.0)", "sphinxext-opengraph (>=0.7.5)", "tox (>=3.20.1)", "typing-extensions (>=3.10.0.0)"]
+dev = ["autoapi (>=0.9.0)", "coverage (>=5.5)", "equinox", "mypy (>=0.800)", "numpy", "pandera", "pydata-sphinx-theme (<=0.7.2)", "pytest (>=4.0.0)", "sphinx", "sphinx (>=4.2.0,<6.0.0)", "sphinxext-opengraph (>=0.7.5)", "tox (>=3.20.1)", "typing-extensions (>=3.10.0.0)"]
 doc-rtd = ["autoapi (>=0.9.0)", "pydata-sphinx-theme (<=0.7.2)", "sphinx (>=4.2.0,<6.0.0)", "sphinxext-opengraph (>=0.7.5)"]
-test-tox = ["mypy (>=0.800)", "numpy", "pandera", "pytest (>=4.0.0)", "sphinx", "typing-extensions (>=3.10.0.0)"]
+test-tox = ["equinox", "mypy (>=0.800)", "numpy", "pandera", "pytest (>=4.0.0)", "sphinx", "typing-extensions (>=3.10.0.0)"]
 test-tox-coverage = ["coverage (>=5.5)"]
 
 [[package]]
@@ -5380,4 +5380,4 @@ groq = ["groq"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.10, <3.13"
-content-hash = "ffedc0d7d6aed3596541e63d08ab1214aa4f5228abe44c5a6668e056eed4a0c0"
+content-hash = "c9ab5c98408529450bdc1d21c0c6b15ea470c3c0070fcb3dfef6178d6848f99f"
diff --git a/pyproject.toml b/pyproject.toml
index 850de807c..09630fc11 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ gin-config = "^0.5.0"
 absl-py = "^2.0.0"
 together = "^0.2.4"
 pydantic = "1.10.12"
-beartype = "^0.14.0"
+beartype = ">=0.14,<0.19"
 langchain-openai = "~0.1.8"
 litellm = "~1.23.12"