diff --git a/environment.yml b/environment.yml
index 7faf483..acb3753 100644
--- a/environment.yml
+++ b/environment.yml
@@ -17,6 +17,7 @@ dependencies:
   - shapely
   - xarray
   - xcube >= 1.7.0
+  - zarr >=2.11,<3  # until we can ensure zarr 3 compatibility; see Issue xcube #1102
   # for testing
   - black
   - flake8