diff --git a/fiona/fio/helpers.py b/fiona/fio/helpers.py
index 95829f3..144e7e3 100644
--- a/fiona/fio/helpers.py
+++ b/fiona/fio/helpers.py
@@ -8,7 +8,7 @@ import math
 import warnings
 
 from fiona.model import Geometry, to_dict
-from fiona._vendor.munch import munchify
+from munch import munchify
 
 
 warnings.simplefilter("default")