diff --git a/src/number-keyboard/Key.js b/src/number-keyboard/Key.js
index 79c8f5b96..09c36851a 100644
--- a/src/number-keyboard/Key.js
+++ b/src/number-keyboard/Key.js
@@ -40,6 +40,9 @@ export default createComponent({
 
   methods: {
     onTouchStart(event) {
+      // compatible with Vue 2.6 event bubble bug
+      event.stopPropagation();
+
       this.touchStart(event);
       this.active = true;
     },