diff --git a/.gitignore b/.gitignore
index ad1f082ac..dafbf6647 100644
--- a/.gitignore
+++ b/.gitignore
@@ -48,4 +48,7 @@ _version.py
 # other
 node_modules/
 
-.asv/
\ No newline at end of file
+.asv/
+
+.mypy_cache
+.ruff_cache
diff --git a/pyproject.toml b/pyproject.toml
index 766f75152..23d4ba8f6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ dependencies = [
     "ome_zarr>=0.12.2",
     "pandas",
     "pooch",
-    "pyarrow",
+    "pyarrow<22.0.0",  # https://github.com/scverse/spatialdata/issues/1000
     "rich",
     "setuptools",
     "shapely>=2.0.1",