diff --git a/image_cropping/backends/base.py b/image_cropping/backends/base.py
index a7a74bcd..0fc50914 100644
--- a/image_cropping/backends/base.py
+++ b/image_cropping/backends/base.py
@@ -18,6 +18,8 @@ class ImageBackend(metaclass=abc.ABCMeta):
         "hidden": widgets.HiddenImageCropWidget,
         "ImageField": widgets.ImageCropWidget,
         "ImageCropField": widgets.ImageCropWidget,
+        "ProtectedImageField": widgets.ImageCropWidget,
+        "PublicImageField": widgets.ImageCropWidget,
     }
 
     def __init__(self, **kwargs):