diff --git a/package-lock.json b/package-lock.json
index b4748f9..4d978ca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1528,7 +1528,7 @@
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+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -2190,9 +2190,9 @@
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-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz",
-      "integrity": "sha1-ysmvh2LIWDYYcAPI3+GT5eLq5d8=",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+      "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
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@@ -2201,13 +2201,6 @@
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-          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
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@@ -5317,17 +5310,6 @@
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-        "elliptic": {
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-          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.3.2.tgz",
-          "integrity": "sha1-5MgeCCnPCmWrcOmYuCMnI7XBvEg=",
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-            "hash.js": "^1.0.0",
-            "inherits": "^2.0.1"
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@@ -5532,6 +5514,26 @@
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+              "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+              "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+            },
+            "safe-buffer": {
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+              "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+              "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+            },
+            "string_decoder": {
+              "version": "1.1.1",
+              "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+              "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+              "requires": {
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+              }
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         "rimraf": {
@@ -5567,6 +5569,42 @@
           "requires": {
             "inherits": "~2.0.1",
             "readable-stream": "^2.0.2"
+          },
+          "dependencies": {
+            "readable-stream": {
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+              "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+              "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+              "requires": {
+                "core-util-is": "~1.0.0",
+                "inherits": "~2.0.3",
+                "isarray": "~1.0.0",
+                "process-nextick-args": "~2.0.0",
+                "safe-buffer": "~5.1.1",
+                "string_decoder": "~1.1.1",
+                "util-deprecate": "~1.0.1"
+              },
+              "dependencies": {
+                "inherits": {
+                  "version": "2.0.4",
+                  "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+                  "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+                }
+              }
+            },
+            "safe-buffer": {
+              "version": "5.1.2",
+              "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+              "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+            },
+            "string_decoder": {
+              "version": "1.1.1",
+              "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+              "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+              "requires": {
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+              }
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           }
         },
         "string_decoder": {