diff --git a/bindings/python/pyproject.toml b/bindings/python/pyproject.toml
index 59dc6677..121e8509 100644
--- a/bindings/python/pyproject.toml
+++ b/bindings/python/pyproject.toml
@@ -6,7 +6,7 @@ requires = [
     # Needed for numpy headers.
     "numpy>=2.0",
     # Must be kept in sync with "project.dependencies" below.
-    "pyarrow>=18.0,<18.1.0",
+    "pyarrow>=19.0,<19.1.0",
 ]
 
 [project]
@@ -37,7 +37,7 @@ readme = "README.md"
 requires-python = ">=3.9"
 dependencies = [
     # Must be kept in sync with "build_sytem.requires" above.
-    "pyarrow >=18.0,<18.1",
+    "pyarrow >=19.0,<19.1",
     "pymongo >=4.4,<5",
     "pandas >=1.3.5,<3",
     "packaging >=23.2",