diff --git a/setup.py b/setup.py
index ef4634b..3ac0431 100644
--- a/setup.py
+++ b/setup.py
@@ -14,8 +14,7 @@
     "entrypoints",
     "numpy",
     "pandas",
-    "xarray!=2022.6.0,!=2022.9.0,!=2022.10.0,!=2022.11",  # 6-11 have a groupby bug:
-    # https://github.com/pydata/xarray/issues/6836
+    "xarray<2022.6",  # groupby bug was introduced in index refactor: https://github.com/pydata/xarray/issues/6836
     "netcdf4!=1.6.0",  # https://github.com/Unidata/netcdf4-python/issues/1175,
 ]