diff --git a/src/sssom/cliques.py b/src/sssom/cliques.py
index 5c579d44..53e7b5c5 100644
--- a/src/sssom/cliques.py
+++ b/src/sssom/cliques.py
@@ -4,8 +4,7 @@
 import statistics
 import uuid
 from collections import defaultdict
-from typing import DefaultDict, Dict, List, Optional, Set, TYPE_CHECKING
-
+from typing import TYPE_CHECKING, DefaultDict, Dict, List, Optional, Set
 
 import pandas as pd
 from sssom_schema import Mapping, MappingSet
@@ -30,6 +29,7 @@
 if TYPE_CHECKING:
     import networkx
 
+
 def to_digraph(msdf: MappingSetDataFrame) -> "networkx.DiGraph":
     """Convert to a graph where the nodes are entities' CURIEs and edges are their mappings."""
     import networkx as nx