diff --git a/package-lock.json b/package-lock.json
index f330c03..bf0c4c1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2508,24 +2508,30 @@
       "dev": true
     },
     "elliptic": {
-      "version": "6.5.3",
-      "resolved": "https://registry.npm.taobao.org/elliptic/download/elliptic-6.5.3.tgz?cache=0&sync_timestamp=1592492734974&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Felliptic%2Fdownload%2Felliptic-6.5.3.tgz",
-      "integrity": "sha1-y1nrLv2vc6C9eMzXAVpirW4Pk9Y=",
+      "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": "4.11.9",
-          "resolved": "https://registry.npm.taobao.org/bn.js/download/bn.js-4.11.9.tgz",
-          "integrity": "sha1-JtVWgpRY+dHoH8SJUkk9C6NQeCg=",
+          "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
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
           "dev": true
         }
       }