diff --git a/skimage/measure/_regionprops.py b/skimage/measure/_regionprops.py
index 2d4eff59..a7bb3c8a 100644
--- a/skimage/measure/_regionprops.py
+++ b/skimage/measure/_regionprops.py
@@ -9,7 +9,6 @@ from . import _moments
 
 
 from functools import wraps
-from collections import defaultdict
 
 __all__ = ['regionprops', 'perimeter']