diff --git a/package-lock.json b/package-lock.json
index ec6f5537..bdab8b92 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -33,12 +33,27 @@
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-      "resolved": "http://registry.npm.taobao.org/accepts/download/accepts-1.3.5.tgz",
-      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+      "version": "1.3.7",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
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-        "negotiator": "0.6.1"
+        "mime-types": "~2.1.24",
+        "negotiator": "0.6.2"
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+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.49.0.tgz",
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+        },
+        "mime-types": {
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+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.32.tgz",
+          "integrity": "sha512-hJGaVS4G4c9TSMYh2n6SQAGrC4RnfU+daP8G7cSCmaqNjiOoUY0VHCMS42pxnQmVF1GWwFhbHWn3RIxCqTmZ9A==",
+          "requires": {
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+          }
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@@ -163,7 +178,7 @@
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-      "resolved": "http://registry.npm.taobao.org/array-flatten/download/array-flatten-1.1.1.tgz",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
       "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
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@@ -590,9 +605,19 @@
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-      "resolved": "http://registry.npm.taobao.org/content-disposition/download/content-disposition-0.5.2.tgz",
-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.3.tgz",
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@@ -887,7 +912,7 @@
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       "version": "1.0.3",
-      "resolved": "http://registry.npm.taobao.org/escape-html/download/escape-html-1.0.3.tgz",
+      "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
       "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
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@@ -968,54 +993,154 @@
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-      "resolved": "http://registry.npm.taobao.org/express/download/express-4.16.3.tgz",
-      "integrity": "sha1-avilAjUNsyRuzEvs9rWjTSL37VM=",
+      "version": "4.17.1",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.17.1.tgz",
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-        "body-parser": "1.18.2",
-        "content-disposition": "0.5.2",
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         "escape-html": "~1.0.3",
         "etag": "~1.8.1",
-        "finalhandler": "1.1.1",
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         "merge-descriptors": "1.0.1",
         "methods": "~1.1.2",
         "on-finished": "~2.3.0",
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-        "statuses": "~1.4.0",
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+          "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.0.tgz",
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-          "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
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+          "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.4.0.tgz",
+          "integrity": "sha512-4Oz8DUIwdvoa5qMJelxipzi/iJIi40O5cGV1wNYp5hvZP8ZN0T+jiNkL0QepXs+EsQ9XJ8ipEDoiH70ySUJP3Q==",
+          "requires": {
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+            "http-errors": "1.7.2",
+            "iconv-lite": "0.4.24",
+            "unpipe": "1.0.0"
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+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
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-          "resolved": "http://registry.npm.taobao.org/setprototypeof/download/setprototypeof-1.1.0.tgz",
-          "integrity": "sha1-0L2FU2iHtv58DYGMuWLZ2RxU5lY="
+          "version": "1.1.1",
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+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+          "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
+        },
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+          "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+          "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
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+            "mime-types": "~2.1.24"
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@@ -1105,26 +1230,36 @@
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-      "resolved": "http://registry.npm.taobao.org/finalhandler/download/finalhandler-1.1.1.tgz",
-      "integrity": "sha1-7r9O2EAHnIP0JJA4ydcDAIMBsQU=",
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.2.tgz",
+      "integrity": "sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==",
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         "escape-html": "~1.0.3",
         "on-finished": "~2.3.0",
-        "parseurl": "~1.3.2",
-        "statuses": "~1.4.0",
+        "parseurl": "~1.3.3",
+        "statuses": "~1.5.0",
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-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
-          "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
           "requires": {
             "ms": "2.0.0"
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+        "parseurl": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+          "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
+        },
+        "statuses": {
+          "version": "1.5.0",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+          "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
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@@ -1175,9 +1310,9 @@
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-      "resolved": "http://registry.npm.taobao.org/forwarded/download/forwarded-0.1.2.tgz",
-      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ="
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
+      "integrity": "sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow=="
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@@ -1490,9 +1625,9 @@
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-      "resolved": "http://registry.npm.taobao.org/ipaddr.js/download/ipaddr.js-1.6.0.tgz",
-      "integrity": "sha1-4/o1e3c9phnybpXwSdBVxyeW+Gs="
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
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@@ -2018,7 +2153,7 @@
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-      "resolved": "http://registry.npm.taobao.org/merge-descriptors/download/merge-descriptors-1.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
       "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E="
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@@ -2247,9 +2382,9 @@
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-      "resolved": "http://registry.npm.taobao.org/negotiator/download/negotiator-0.6.1.tgz",
-      "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
+      "version": "0.6.2",
+      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
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@@ -2453,7 +2588,7 @@
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-      "resolved": "http://registry.npm.taobao.org/path-to-regexp/download/path-to-regexp-0.1.7.tgz",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
       "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
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@@ -2536,12 +2671,12 @@
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-      "resolved": "http://registry.npm.taobao.org/proxy-addr/download/proxy-addr-2.0.3.tgz",
-      "integrity": "sha1-NV8mJQWmIWRrMTCnKOtkfiIFU0E=",
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
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       "requires": {
-        "forwarded": "~0.1.2",
-        "ipaddr.js": "1.6.0"
+        "forwarded": "0.2.0",
+        "ipaddr.js": "1.9.1"
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@@ -2722,9 +2857,9 @@
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-      "integrity": "sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4="
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
+      "integrity": "sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg=="
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@@ -2912,9 +3047,9 @@
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-      "resolved": "http://registry.npm.taobao.org/send/download/send-0.16.2.tgz",
-      "integrity": "sha1-bsyh4PjBVtFBWXVZhI32RzCmu8E=",
+      "version": "0.17.1",
+      "resolved": "https://registry.npmjs.org/send/-/send-0.17.1.tgz",
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@@ -2923,26 +3058,60 @@
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         "fresh": "0.5.2",
-        "http-errors": "~1.6.2",
-        "mime": "1.4.1",
-        "ms": "2.0.0",
+        "http-errors": "~1.7.2",
+        "mime": "1.6.0",
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         "on-finished": "~2.3.0",
-        "range-parser": "~1.2.0",
-        "statuses": "~1.4.0"
+        "range-parser": "~1.2.1",
+        "statuses": "~1.5.0"
       },
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
-          "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
           "requires": {
             "ms": "2.0.0"
+          },
+          "dependencies": {
+            "ms": {
+              "version": "2.0.0",
+              "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+              "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+            }
           }
         },
-        "mime": {
-          "version": "1.4.1",
-          "resolved": "http://registry.npm.taobao.org/mime/download/mime-1.4.1.tgz",
-          "integrity": "sha1-Eh+evEnjdm8xGnbh+hyAA8SwOqY="
+        "http-errors": {
+          "version": "1.7.3",
+          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.7.3.tgz",
+          "integrity": "sha512-ZTTX0MWrsQ2ZAhA1cejAwDLycFsd7I7nVtnkT3Ol0aqodaKW+0CTZDQ1uBv5whptCnc8e8HeRRJxRs0kmm/Qfw==",
+          "requires": {
+            "depd": "~1.1.2",
+            "inherits": "2.0.4",
+            "setprototypeof": "1.1.1",
+            "statuses": ">= 1.5.0 < 2",
+            "toidentifier": "1.0.0"
+          }
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
+        "ms": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg=="
+        },
+        "setprototypeof": {
+          "version": "1.1.1",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
+          "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
+        },
+        "statuses": {
+          "version": "1.5.0",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+          "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
         }
       }
     },
@@ -3000,14 +3169,21 @@
       }
     },
     "serve-static": {
-      "version": "1.13.2",
-      "resolved": "http://registry.npm.taobao.org/serve-static/download/serve-static-1.13.2.tgz",
-      "integrity": "sha1-CV6Ecv1bRiN9tQzkhqQ/S4bGzsE=",
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
+      "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
       "requires": {
         "encodeurl": "~1.0.2",
         "escape-html": "~1.0.3",
-        "parseurl": "~1.3.2",
-        "send": "0.16.2"
+        "parseurl": "~1.3.3",
+        "send": "0.17.1"
+      },
+      "dependencies": {
+        "parseurl": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+          "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
+        }
       }
     },
     "set-blocking": {
@@ -3283,6 +3459,11 @@
       "resolved": "http://registry.npm.taobao.org/to-fast-properties/download/to-fast-properties-1.0.3.tgz",
       "integrity": "sha1-uDVx+k2MJbguIxsG46MFXeTKGkc="
     },
+    "toidentifier": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+    },
     "token-stream": {
       "version": "0.0.1",
       "resolved": "http://registry.npm.taobao.org/token-stream/download/token-stream-0.0.1.tgz",
@@ -3497,7 +3678,7 @@
     },
     "utils-merge": {
       "version": "1.0.1",
-      "resolved": "http://registry.npm.taobao.org/utils-merge/download/utils-merge-1.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
       "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
     },
     "uuid": {
@@ -3512,7 +3693,7 @@
     },
     "vary": {
       "version": "1.1.2",
-      "resolved": "http://registry.npm.taobao.org/vary/download/vary-1.1.2.tgz",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
     },
     "verror": {
diff --git a/package.json b/package.json
index aa39b8f1..b94b38f5 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "cos-nodejs-sdk-v5": "2.4.10",
     "debug": "3.1.0",
     "diff-match-patch": "1.0.1",
-    "express": "4.16.3",
+    "express": "4.17.1",
     "extract-zip": "1.6.6",
     "formidable": "1.2.1",
     "fs-extra": "7.0.0",