diff --git a/conda/dev-environment-unix.yml b/conda/dev-environment-unix.yml
index 6ec0ecc5..12186b26 100644
--- a/conda/dev-environment-unix.yml
+++ b/conda/dev-environment-unix.yml
@@ -31,7 +31,7 @@ dependencies:
  - pillow
  - polars
  - psutil
- - pyarrow=16
+ - pyarrow>=7,<19
  - pydantic>=2
  - pytest
  - pytest-asyncio
diff --git a/conda/dev-environment-win.yml b/conda/dev-environment-win.yml
index a232852d..24709244 100644
--- a/conda/dev-environment-win.yml
+++ b/conda/dev-environment-win.yml
@@ -30,7 +30,7 @@ dependencies:
  - pillow
  - polars
  - psutil
- - pyarrow=16
+ - pyarrow>=7,<19
  - pydantic>=2
  - pytest
  - pytest-asyncio
diff --git a/pyproject.toml b/pyproject.toml
index 19882ebb..17ae5e1a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = [
     "cmake",
     "deprecated",  # Because used in csp.impl.struct, which is used in autogen
     "oldest-supported-numpy",
-    "pyarrow>=7.0.0",
+    "pyarrow>=7,<19",
     "ruamel.yaml",
     "scikit-build",
     "setuptools>=69,<74",
@@ -26,7 +26,7 @@ dependencies = [
     "packaging",
     "pandas",
     "psutil",
-    "pyarrow>=7.0.0",
+    "pyarrow>=7,<19",
     "pytz",
     "ruamel.yaml",
     "sqlalchemy",