diff --git a/src/views/Introduce.vue b/src/views/Introduce.vue
index 7406a4e..7290c35 100644
--- a/src/views/Introduce.vue
+++ b/src/views/Introduce.vue
@@ -95,7 +95,7 @@ export default {
       } else {
         this.currentCard = await this.$http.post('/api/rainbow_card/card/random')
         history.push({
-          date: today,
+          date: dayjs().format('YYYY-MM-DD'),
           num: this.currentCard.num,
           typeCode: this.currentCard.typeCode
         })