diff --git a/backend/studio515/package-lock.json b/backend/studio515/package-lock.json
index d203660..af8295c 100644
--- a/backend/studio515/package-lock.json
+++ b/backend/studio515/package-lock.json
@@ -8473,8 +8473,8 @@
     },
     "qs": {
       "version": "6.7.0",
-      "resolved": "https://registry.npm.taobao.org/qs/download/qs-6.7.0.tgz?cache=0&sync_timestamp=1573195631718&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fqs%2Fdownload%2Fqs-6.7.0.tgz",
-      "integrity": "sha1-QdwaAV49WB8WIXdr4xr7KHapsbw="
+      "resolved": "https://registry.npmmirror.com/qs/-/qs-6.7.0.tgz",
+      "integrity": "sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ=="
     },
     "querystring": {
       "version": "0.2.0",
@@ -8668,9 +8668,9 @@
           "dev": true
         },
         "qs": {
-          "version": "6.5.2",
-          "resolved": "https://registry.npm.taobao.org/qs/download/qs-6.5.2.tgz?cache=0&sync_timestamp=1573195631718&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fqs%2Fdownload%2Fqs-6.5.2.tgz",
-          "integrity": "sha1-yzroBuh0BERYTvFUzo7pjUA/PjY=",
+          "version": "6.5.3",
+          "resolved": "https://registry.npmmirror.com/qs/-/qs-6.5.3.tgz",
+          "integrity": "sha512-qxXIEh4pCGfHICj1mAJQ2/2XVZkjCDTcEgfoSQxc/fYivUZxTkk7L3bDBJSoNrEzXI17oUO5Dp07ktqE5KzczA==",
           "dev": true
         },
         "tough-cookie": {