diff --git a/pages/institutionalStructure/mixins/donation-mixin.js b/pages/institutionalStructure/mixins/donation-mixin.js
index b014fdb..4866a02 100644
--- a/pages/institutionalStructure/mixins/donation-mixin.js
+++ b/pages/institutionalStructure/mixins/donation-mixin.js
@@ -91,7 +91,7 @@ export const donationMixin = {
      * @returns {string} 格式化后的日期
      */
     formatDate(dateStr) {
-      return this.$u.date(dateStr, "yyyy-MM-dd");
+      return this.$u.date(dateStr, "yyyy-mm-dd");
       // if (!dateStr) return "";
       // const date = new Date(dateStr);
       // const year = date.getFullYear();