diff --git a/web/routes/missionboard/index.js b/web/routes/missionboard/index.js
index 0015b71..1a5dfb6 100644
--- a/web/routes/missionboard/index.js
+++ b/web/routes/missionboard/index.js
@@ -43,7 +43,7 @@ module.exports = {
     }
 
     function extractBuildTime(inputString) {
-      const pattern = /[（\(]构建时间：(.*?)[\)）]/;
+      const pattern = /[（\(]构建时间[：:](\d{4}-\d{1,2}-\d{1,2} \d{1,2}:\d{1,2})[\)）]/;
       const match = inputString.match(pattern);
       const buildDate = match ? moment(new Date(match[1])).format('YYYY-MM-DD HH:mm') : null;
       return buildDate;