diff --git a/sumpy/tools.py b/sumpy/tools.py
index f1ac7c1e0be0ec51ebd6a27e28def5a75e3bf172..3d79ded5b4f423b182d3969968cf397533ca9880 100644
--- a/sumpy/tools.py
+++ b/sumpy/tools.py
@@ -686,10 +686,7 @@ class KernelComputation(ABC):
 # Author: Raymond Hettinger
 # License: MIT
 
-try:
-    from collections.abc import MutableSet
-except ImportError:
-    from collections import MutableSet
+from collections.abc import MutableSet
 
 
 class OrderedSet(MutableSet):