diff --git a/pyproject.toml b/pyproject.toml
index cf1b048fb..0bf1248f1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -147,7 +147,7 @@ utm = { version = "^0.7.0", optional = true }
 scipy = { version = "^1.9.1", optional = true }
 shapely = { version = "^1.8.4", optional = true }
 
-zarr = { version = "^2.7", optional = true }
+zarr = { version = "^2.7", python = "<3.11", optional = true }
 xarray = { version = "^2022.3", optional = true }
 
 [tool.poetry.dev-dependencies]
diff --git a/tests/provider/dwd/observation/test_io.py b/tests/provider/dwd/observation/test_io.py
index 2fb216e74..89fa380bb 100644
--- a/tests/provider/dwd/observation/test_io.py
+++ b/tests/provider/dwd/observation/test_io.py
@@ -15,7 +15,6 @@
 import pyarrow.feather as feather
 import pyarrow.parquet as pq
 import pytest
-import zarr
 from surrogate import surrogate
 
 from wetterdienst.core.process import filter_by_date_and_resolution
@@ -392,6 +391,9 @@ def test_export_parquet(tmpdir_factory):
 @pytest.mark.remote
 def test_export_zarr(tmpdir_factory):
     """Test export of DataFrame to zarr"""
+
+    zarr = pytest.importorskip("zarr")
+
     Settings.tidy = False
     Settings.humanize = True
     Settings.si_units = False