diff --git a/package-lock.json b/package-lock.json
index 7cc8350..fde7191 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2369,18 +2369,26 @@
       "dev": true
     },
     "elliptic": {
-      "version": "6.5.0",
-      "resolved": "https://registry.npm.taobao.org/elliptic/download/elliptic-6.5.0.tgz",
-      "integrity": "sha1-K47UyJG33jIA4UQSpbgkjHr1Bco=",
+      "version": "6.5.4",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
+      "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
       "dev": true,
       "requires": {
-        "bn.js": "^4.4.0",
-        "brorand": "^1.0.1",
+        "bn.js": "^4.11.9",
+        "brorand": "^1.1.0",
         "hash.js": "^1.0.0",
-        "hmac-drbg": "^1.0.0",
-        "inherits": "^2.0.1",
-        "minimalistic-assert": "^1.0.0",
-        "minimalistic-crypto-utils": "^1.0.0"
+        "hmac-drbg": "^1.0.1",
+        "inherits": "^2.0.4",
+        "minimalistic-assert": "^1.0.1",
+        "minimalistic-crypto-utils": "^1.0.1"
+      },
+      "dependencies": {
+        "bn.js": {
+          "version": "4.12.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz",
+          "integrity": "sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==",
+          "dev": true
+        }
       }
     },
     "emoji-regex": {
@@ -3409,7 +3417,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -3430,12 +3439,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -3450,17 +3461,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -3577,7 +3591,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -3589,6 +3604,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -3603,6 +3619,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -3610,12 +3627,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -3634,6 +3653,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3714,7 +3734,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -3726,6 +3747,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -3811,7 +3833,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -3847,6 +3870,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -3866,6 +3890,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -3909,12 +3934,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -3991,7 +4018,7 @@
     },
     "globals": {
       "version": "9.18.0",
-      "resolved": "http://registry.npm.taobao.org/globals/download/globals-9.18.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/globals/download/globals-9.18.0.tgz",
       "integrity": "sha1-qjiWs+abSH8X4x7SFD1pqOMMLYo=",
       "dev": true
     },
@@ -4293,7 +4320,7 @@
     },
     "iconv-lite": {
       "version": "0.4.18",
-      "resolved": "http://registry.npm.taobao.org/iconv-lite/download/iconv-lite-0.4.18.tgz",
+      "resolved": "https://registry.npm.taobao.org/iconv-lite/download/iconv-lite-0.4.18.tgz",
       "integrity": "sha1-I9hlaxaq5nQqwpcy6o8DNqR4nPI="
     },
     "icss-replace-symbols": {
@@ -4350,7 +4377,7 @@
         },
         "supports-color": {
           "version": "4.2.1",
-          "resolved": "http://registry.npm.taobao.org/supports-color/download/supports-color-4.2.1.tgz",
+          "resolved": "https://registry.npm.taobao.org/supports-color/download/supports-color-4.2.1.tgz",
           "integrity": "sha1-ZaS7JjHpDgJCDbpVVMN1pHVLuDY=",
           "dev": true,
           "requires": {
@@ -4845,7 +4872,7 @@
     },
     "js-yaml": {
       "version": "3.8.4",
-      "resolved": "http://registry.npm.taobao.org/js-yaml/download/js-yaml-3.8.4.tgz",
+      "resolved": "https://registry.npm.taobao.org/js-yaml/download/js-yaml-3.8.4.tgz",
       "integrity": "sha1-UgtFZPhlc7qWZir4Woyvp7S1pvY=",
       "dev": true,
       "requires": {
@@ -5404,7 +5431,7 @@
     },
     "ms": {
       "version": "2.0.0",
-      "resolved": "http://registry.npm.taobao.org/ms/download/ms-2.0.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/ms/download/ms-2.0.0.tgz",
       "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
       "dev": true
     },