diff --git a/src/components/DatePicker/src/DatePicker.vue b/src/components/DatePicker/src/DatePicker.vue
index c3f764e..1661dbb 100644
--- a/src/components/DatePicker/src/DatePicker.vue
+++ b/src/components/DatePicker/src/DatePicker.vue
@@ -46,7 +46,7 @@ const picker = computed(() => {
 watch(
     () => props.value,
     (val) => {
-        modelValue.value = dayjs(val || '');
+        modelValue.value = dayjs(val || undefined);
     },
     {
         immediate: true,