diff --git a/lib/ucoin/__init__.py b/lib/ucoin/__init__.py
index c4f2b0fd658048d2d2cd3ffd0cb87a02826d38da..f0d2720c52506dc89f751f405f0dcd422db42ec0 100644
--- a/lib/ucoin/__init__.py
+++ b/lib/ucoin/__init__.py
@@ -207,6 +207,5 @@ class API:
 
 from . import pks
 from . import hdc
-from . import wrappers
 from . import network
 from . import registry