diff --git a/pyproject.toml b/pyproject.toml
index 728264a..bb78e53 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -78,7 +78,7 @@ optional-dependencies.release = [
 ]
 optional-dependencies.test = [
   "pandas<2.3",
-  "polars[pyarrow]<1.13",
+  "polars[pyarrow]<1.15",
   "pytest<9",
   "pytest-asyncio<1",
   "pytest-cov<6",