diff --git a/ci/environment_py38.yaml b/ci/environment_py38.yaml
index e839744..9d3e303 100644
--- a/ci/environment_py38.yaml
+++ b/ci/environment_py38.yaml
@@ -6,6 +6,7 @@ dependencies:
   - cftime
   - dask
   - flake8
+  - fsspec<2023.10.0
   - intake
   - intake-esm
   - netCDF4