diff --git a/backend/package-lock.json b/backend/package-lock.json
index 89ef22b..45c35a0 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -53,6 +53,14 @@
       "resolved": "https://registry.npm.taobao.org/@types/cors/download/@types/cors-2.8.10.tgz",
       "integrity": "sha1-YcyEaYSeW83QxwRBIiZcOc7BDPQ="
     },
+    "@types/debug": {
+      "version": "4.1.7",
+      "resolved": "https://registry.npmmirror.com/@types/debug/-/debug-4.1.7.tgz",
+      "integrity": "sha512-9AonUzyTjXXhEOa0DnqpzZi6VHlqKMswga9EXjpXnnqxwLtdvPPtlO8evrI5D9S6asFRCQ6v+wpiUKbw+vKqyg==",
+      "requires": {
+        "@types/ms": "*"
+      }
+    },
     "@types/express": {
       "version": "4.17.11",
       "resolved": "https://registry.npm.taobao.org/@types/express/download/@types/express-4.17.11.tgz?cache=0&sync_timestamp=1610485961396&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2F%40types%2Fexpress%2Fdownload%2F%40types%2Fexpress-4.17.11.tgz",
@@ -110,6 +118,11 @@
       "integrity": "sha1-k+Jb+e51/g/YC1lLxP6w6GIRG1o=",
       "dev": true
     },
+    "@types/ms": {
+      "version": "0.7.31",
+      "resolved": "https://registry.npmmirror.com/@types/ms/-/ms-0.7.31.tgz",
+      "integrity": "sha512-iiUgKzV9AuaEkZqkOLDIvlQiL6ltuZd9tGcW3gwpnX8JbuiuhFlEGmmFXEXkN50Cvq7Os88IY2v0dkDqXYWVgA=="
+    },
     "@types/node": {
       "version": "14.14.24",
       "resolved": "https://registry.npm.taobao.org/@types/node/download/@types/node-14.14.24.tgz",
@@ -213,11 +226,6 @@
         "color-convert": "^2.0.1"
       }
     },
-    "any-promise": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npm.taobao.org/any-promise/download/any-promise-1.3.0.tgz",
-      "integrity": "sha1-q8av7tzqUugJzcA3au0845Y10X8="
-    },
     "anymatch": {
       "version": "3.1.1",
       "resolved": "https://registry.npm.taobao.org/anymatch/download/anymatch-3.1.1.tgz",
@@ -636,9 +644,9 @@
       "integrity": "sha1-l+YZJZradQ7qPk6j4mvO6lQksWo="
     },
     "dottie": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npm.taobao.org/dottie/download/dottie-2.0.2.tgz",
-      "integrity": "sha1-zJHAcmzjoFTr8RxV+8kqfyZt0VQ="
+      "version": "2.0.3",
+      "resolved": "https://registry.npmmirror.com/dottie/-/dottie-2.0.3.tgz",
+      "integrity": "sha512-4liA0PuRkZWQFQjwBypdxPfZaRWiv5tkhMXY2hzsa2pNf5s7U3m9cwUchfNKe8wZQxdGPQQzO6Rm2uGe0rvohQ=="
     },
     "duplexer3": {
       "version": "0.1.4",
@@ -1105,9 +1113,9 @@
       "dev": true
     },
     "inflection": {
-      "version": "1.12.0",
-      "resolved": "https://registry.npm.taobao.org/inflection/download/inflection-1.12.0.tgz",
-      "integrity": "sha1-ogCTVlbW9fa8TcdQLhrstwMihBY="
+      "version": "1.13.4",
+      "resolved": "https://registry.npmmirror.com/inflection/-/inflection-1.13.4.tgz",
+      "integrity": "sha512-6I/HUDeYFfuNCVS3td055BaXBwKYuzw7K3ExVMStBowKo9oOAMJIXIHvdyR3iboTCp1b+1i5DSkIZTcwIktuDw=="
     },
     "inherits": {
       "version": "2.0.3",
@@ -1438,9 +1446,9 @@
       "integrity": "sha1-sr52n6MZQL6e7qZGnAdeNQBvo9M="
     },
     "moment-timezone": {
-      "version": "0.5.32",
-      "resolved": "https://registry.npm.taobao.org/moment-timezone/download/moment-timezone-0.5.32.tgz",
-      "integrity": "sha1-23Z3zDzGgP0wMD69kLDaHKDf7MI=",
+      "version": "0.5.40",
+      "resolved": "https://registry.npmmirror.com/moment-timezone/-/moment-timezone-0.5.40.tgz",
+      "integrity": "sha512-tWfmNkRYmBkPJz5mr9GVDn9vRlVZOTe6yqY92rFxiOdWXbjaR0+9LwQnZGGuNR63X456NqmEkbskte8tWL5ePg==",
       "requires": {
         "moment": ">= 2.9.0"
       }
@@ -1635,6 +1643,11 @@
       "resolved": "https://registry.npm.taobao.org/path-to-regexp/download/path-to-regexp-0.1.7.tgz",
       "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
     },
+    "pg-connection-string": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmmirror.com/pg-connection-string/-/pg-connection-string-2.5.0.tgz",
+      "integrity": "sha512-r5o/V/ORTA6TmUnyWZR9nCj1klXCO2CEKNRlVuJptZe85QuhFayC7WeMic7ndayT5IRIR0S0xFxFi2ousartlQ=="
+    },
     "picomatch": {
       "version": "2.2.2",
       "resolved": "https://registry.npm.taobao.org/picomatch/download/picomatch-2.2.2.tgz",
@@ -1766,12 +1779,9 @@
       }
     },
     "retry-as-promised": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npm.taobao.org/retry-as-promised/download/retry-as-promised-3.2.0.tgz",
-      "integrity": "sha1-dp9j1Ta+xHg1SdsHd8tW2t2dhUM=",
-      "requires": {
-        "any-promise": "^1.3.0"
-      }
+      "version": "7.0.4",
+      "resolved": "https://registry.npmmirror.com/retry-as-promised/-/retry-as-promised-7.0.4.tgz",
+      "integrity": "sha512-XgmCoxKWkDofwH8WddD0w85ZfqYz+ZHlr5yo+3YUCfycWawU56T5ckWXsScsj5B8tqUcIG67DxXByo3VUgiAdA=="
     },
     "safe-buffer": {
       "version": "5.1.2",
@@ -1838,42 +1848,50 @@
       "integrity": "sha1-1WgS4cAXpuTnw+Ojeh2m143TyT4="
     },
     "sequelize": {
-      "version": "6.5.0",
-      "resolved": "https://registry.npm.taobao.org/sequelize/download/sequelize-6.5.0.tgz?cache=0&sync_timestamp=1611720567565&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fsequelize%2Fdownload%2Fsequelize-6.5.0.tgz",
-      "integrity": "sha1-yWigP2+7zaQHF/c+2zn63ye4XpY=",
-      "requires": {
-        "debug": "^4.1.1",
-        "dottie": "^2.0.0",
-        "inflection": "1.12.0",
-        "lodash": "^4.17.20",
-        "moment": "^2.26.0",
-        "moment-timezone": "^0.5.31",
-        "retry-as-promised": "^3.2.0",
-        "semver": "^7.3.2",
-        "sequelize-pool": "^6.0.0",
+      "version": "6.29.0",
+      "resolved": "https://registry.npmmirror.com/sequelize/-/sequelize-6.29.0.tgz",
+      "integrity": "sha512-m8Wi90rs3NZP9coXE52c7PL4Q078nwYZXqt1IxPvgki7nOFn0p/F0eKsYDBXCPw9G8/BCEa6zZNk0DQUAT4ypA==",
+      "requires": {
+        "@types/debug": "^4.1.7",
+        "@types/validator": "^13.7.1",
+        "debug": "^4.3.3",
+        "dottie": "^2.0.2",
+        "inflection": "^1.13.2",
+        "lodash": "^4.17.21",
+        "moment": "^2.29.1",
+        "moment-timezone": "^0.5.35",
+        "pg-connection-string": "^2.5.0",
+        "retry-as-promised": "^7.0.3",
+        "semver": "^7.3.5",
+        "sequelize-pool": "^7.1.0",
         "toposort-class": "^1.0.1",
-        "uuid": "^8.1.0",
-        "validator": "^10.11.0",
+        "uuid": "^8.3.2",
+        "validator": "^13.7.0",
         "wkx": "^0.5.0"
       },
       "dependencies": {
+        "@types/validator": {
+          "version": "13.7.12",
+          "resolved": "https://registry.npmmirror.com/@types/validator/-/validator-13.7.12.tgz",
+          "integrity": "sha512-YVtyAPqpefU+Mm/qqnOANW6IkqKpCSrarcyV269C8MA8Ux0dbkEuQwM/4CjL47kVEM2LgBef/ETfkH+c6+moFA=="
+        },
         "debug": {
-          "version": "4.3.1",
-          "resolved": "https://registry.npm.taobao.org/debug/download/debug-4.3.1.tgz?cache=0&sync_timestamp=1607566571506&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fdebug%2Fdownload%2Fdebug-4.3.1.tgz",
-          "integrity": "sha1-8NIpxQXgxtjEmsVT0bE9wYP2su4=",
+          "version": "4.3.4",
+          "resolved": "https://registry.npmmirror.com/debug/-/debug-4.3.4.tgz",
+          "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
           "requires": {
             "ms": "2.1.2"
           }
         },
         "ms": {
           "version": "2.1.2",
-          "resolved": "https://registry.npm.taobao.org/ms/download/ms-2.1.2.tgz?cache=0&sync_timestamp=1607433872491&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fms%2Fdownload%2Fms-2.1.2.tgz",
-          "integrity": "sha1-0J0fNXtEP0kzgqjrPM0YOHKuYAk="
+          "resolved": "https://registry.npmmirror.com/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
         },
         "semver": {
-          "version": "7.3.4",
-          "resolved": "https://registry.npm.taobao.org/semver/download/semver-7.3.4.tgz?cache=0&sync_timestamp=1606854493763&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fsemver%2Fdownload%2Fsemver-7.3.4.tgz",
-          "integrity": "sha1-J6qn0uTKdkUvmNOt0JOnLJQ+3Jc=",
+          "version": "7.3.8",
+          "resolved": "https://registry.npmmirror.com/semver/-/semver-7.3.8.tgz",
+          "integrity": "sha512-NB1ctGL5rlHrPJtFDVIVzTyQylMLu9N9VICA6HSFJo8MCGVTMW6gfpicwKmmK/dAjTOrqu5l63JJOpDSrAis3A==",
           "requires": {
             "lru-cache": "^6.0.0"
           }
@@ -1881,9 +1899,9 @@
       }
     },
     "sequelize-pool": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npm.taobao.org/sequelize-pool/download/sequelize-pool-6.1.0.tgz",
-      "integrity": "sha1-yqoMHjJNPCw6OZ/tLHmYlwkl1mg="
+      "version": "7.1.0",
+      "resolved": "https://registry.npmmirror.com/sequelize-pool/-/sequelize-pool-7.1.0.tgz",
+      "integrity": "sha512-G9c0qlIWQSK29pR/5U2JF5dDQeqqHRragoyahj/Nx4KOOQ3CPPfzxnfqFPCSB7x5UgjOgnZ61nSxz+fjDpRlJg=="
     },
     "serve-static": {
       "version": "1.14.1",
@@ -2085,8 +2103,8 @@
     },
     "toposort-class": {
       "version": "1.0.1",
-      "resolved": "https://registry.npm.taobao.org/toposort-class/download/toposort-class-1.0.1.tgz",
-      "integrity": "sha1-f/0feMi+KMO6Rc1OGj9e4ZO9mYg="
+      "resolved": "https://registry.npmmirror.com/toposort-class/-/toposort-class-1.0.1.tgz",
+      "integrity": "sha512-OsLcGGbYF3rMjPUf8oKktyvCiUxSbqMMS39m33MAjLTC1DVIH6x3WSt63/M77ihI09+Sdfk1AXvfhCEeUmC7mg=="
     },
     "touch": {
       "version": "3.1.0",
@@ -2196,13 +2214,13 @@
     },
     "uuid": {
       "version": "8.3.2",
-      "resolved": "https://registry.npm.taobao.org/uuid/download/uuid-8.3.2.tgz?cache=0&sync_timestamp=1607458532020&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fuuid%2Fdownload%2Fuuid-8.3.2.tgz",
-      "integrity": "sha1-gNW1ztJxu5r2xEXyGhoExgbO++I="
+      "resolved": "https://registry.npmmirror.com/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
     },
     "validator": {
-      "version": "10.11.0",
-      "resolved": "https://registry.npm.taobao.org/validator/download/validator-10.11.0.tgz?cache=0&sync_timestamp=1607602731504&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fvalidator%2Fdownload%2Fvalidator-10.11.0.tgz",
-      "integrity": "sha1-ADEI6m6amHTTHMyeUAaFbM12sig="
+      "version": "13.9.0",
+      "resolved": "https://registry.npmmirror.com/validator/-/validator-13.9.0.tgz",
+      "integrity": "sha512-B+dGG8U3fdtM0/aNK4/X8CXq/EcxU2WPrPEkJGslb47qyHsxmbggTWK0yEA4qnYVNF+nxNlN88o14hIcPmSIEA=="
     },
     "vary": {
       "version": "1.1.2",
@@ -2229,8 +2247,8 @@
     },
     "wkx": {
       "version": "0.5.0",
-      "resolved": "https://registry.npm.taobao.org/wkx/download/wkx-0.5.0.tgz",
-      "integrity": "sha1-xsNwGaz0DlF8xrlGV6JaPUqjPow=",
+      "resolved": "https://registry.npmmirror.com/wkx/-/wkx-0.5.0.tgz",
+      "integrity": "sha512-Xng/d4Ichh8uN4l0FToV/258EjMGU9MGcA0HV2d9B/ZpZB3lqQm7nkOdZdm5GhKtLLhAE7PiVQwN4eN+2YJJUg==",
       "requires": {
         "@types/node": "*"
       }
diff --git a/backend/package.json b/backend/package.json
index fc28c03..d71e49e 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -32,7 +32,7 @@
     "moment": "^2.29.0",
     "mysql2": "^2.1.0",
     "omit.js": "^2.0.2",
-    "sequelize": "^6.3.5",
+    "sequelize": "^6.29.0",
     "socket.io": "^3.1.1"
   },
   "devDependencies": {