diff --git a/packages/stepper/index.less b/packages/stepper/index.less
index 8e929384..9f4c09a5 100644
--- a/packages/stepper/index.less
+++ b/packages/stepper/index.less
@@ -76,6 +76,7 @@
     width: 33px;
     height: 26px;
     padding: 1px;
+    min-height: 0; // reset wechat default min height
     border: 1px solid @border-color;
     border-width: 1px 0;
     border-radius: 0;