diff --git a/xarray/tests/__init__.py b/xarray/tests/__init__.py
index f1dd12a5675..9ff8de74ba3 100644
--- a/xarray/tests/__init__.py
+++ b/xarray/tests/__init__.py
@@ -101,8 +101,6 @@ def _importorskip(
 if has_dask:
     import dask
 
-    dask.config.set(scheduler="single-threaded")
-
 
 class CountingScheduler:
     """Simple dask scheduler counting the number of computes.