diff --git a/contact_map/tests/test_dask_runner.py b/contact_map/tests/test_dask_runner.py
index d72cb18..f938a66 100644
--- a/contact_map/tests/test_dask_runner.py
+++ b/contact_map/tests/test_dask_runner.py
@@ -11,8 +11,10 @@ def test_dask_integration(self):
         # this is an integration test to check that dask works
         dask = pytest.importorskip('dask')  # pylint: disable=W0612
         distributed = pytest.importorskip('dask.distributed')
-
-        client = distributed.Client()
+        # Explicitly set only 4 workers on Travis instead of 31
+        # Fix copied from https://github.com/spencerahill/aospy/pull/220/files
+        cluster = distributed.LocalCluster(n_workers=4)
+        client = distributed.Client(cluster)
         filename = find_testfile("trajectory.pdb")
 
         dask_freq = DaskContactFrequency(client, filename, cutoff=0.075,