diff --git a/grits/coarsegrain.py b/grits/coarsegrain.py
index 7d7fd2f..d16dcd9 100644
--- a/grits/coarsegrain.py
+++ b/grits/coarsegrain.py
@@ -10,7 +10,10 @@
 import freud
 import gsd.hoomd
 import numpy as np
-from cmeutils.gsd_utils import get_molecule_cluster, identify_snapshot_connections
+from cmeutils.gsd_utils import (
+    get_molecule_cluster,
+    identify_snapshot_connections,
+)
 from ele import element_from_symbol
 from mbuild import Compound, clone
 from mbuild.utils.io import run_from_ipython