diff --git a/project/dv/apps/components/AiGrid.vue b/project/dv/apps/components/AiGrid.vue
index ac48619e..66d5cc50 100644
--- a/project/dv/apps/components/AiGrid.vue
+++ b/project/dv/apps/components/AiGrid.vue
@@ -72,9 +72,9 @@
         if (elClass === 'tree' || elClass === 'middle' || (elClass && (elClass.indexOf('chart') > -1 || elClass.indexOf('user') > -1))) {
           var dir = event.deltaY > 0 ? 'Up' : 'Down'
           if (dir === 'Up') {
-            this.scale = this.scale - 0.2 <= 0.1 ? 0.1 : this.scale - 0.2
+            this.scale = this.scale - 0.12 <= 0.1 ? 0.1 : this.scale - 0.12
           } else {
-            this.scale = this.scale + 0.2
+            this.scale = this.scale + 0.12
           }
         }