diff --git a/app/core/service/PackageSyncerService.ts b/app/core/service/PackageSyncerService.ts
index b2895abd..b2866c45 100644
--- a/app/core/service/PackageSyncerService.ts
+++ b/app/core/service/PackageSyncerService.ts
@@ -740,6 +740,11 @@ export class PackageSyncerService extends AbstractService {
     let shouldRefreshDistTags = false;
     for (const tag in distTags) {
       const version = distTags[tag];
+      const utf8mb3Regex = /[\u0020-\uD7FF\uE000-\uFFFD]/;
+      if (!utf8mb3Regex.test(tag)) {
+        logs.push(`[${isoNow()}] 🚧 invalid tag(${tag}: ${version}), tag name is out of utf8mb3, skip`);
+        continue;
+      }
       // 新 tag 指向的版本既不在存量数据里，也不在本次同步版本列表里
       // 例如 latest 对应的 version 写入失败跳过
       if (!existsVersionMap[version] && !updateVersions.includes(version)) {