diff --git a/package-lock.json b/package-lock.json
index 1d6a45c..efebb73 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -234,8 +234,7 @@
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       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.8.tgz",
-      "integrity": "sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==",
-      "dev": true
+      "integrity": "sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA=="
     },
     "body-parser": {
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@@ -279,8 +278,7 @@
     "brorand": {
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       "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
-      "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=",
-      "dev": true
+      "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8="
     },
     "browser-stdout": {
       "version": "1.3.1",
@@ -897,10 +895,9 @@
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     },
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-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.1.tgz",
-      "integrity": "sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==",
-      "dev": true,
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+      "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
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@@ -4151,20 +4148,6 @@
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-        "elliptic": {
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-          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.1.tgz",
-          "integrity": "sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==",
-          "requires": {
-            "bn.js": "^4.4.0",
-            "brorand": "^1.0.1",
-            "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"
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@@ -5219,7 +5202,6 @@
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-            "elliptic": "6.3.3",
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             "js-sha3": "0.5.7",
             "scrypt-js": "2.0.4",
@@ -5233,17 +5215,6 @@
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               "integrity": "sha1-4h3xCtbCBTKVvLuNq0Cwnb6ofk0="
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-            "elliptic": {
-              "version": "6.3.3",
-              "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.3.3.tgz",
-              "integrity": "sha1-VILZZG1UvLif19mU/J4ulWiHbj8=",
-              "requires": {
-                "bn.js": "^4.4.0",
-                "brorand": "^1.0.1",
-                "hash.js": "^1.0.0",
-                "inherits": "^2.0.1"
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               "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.3.tgz",
@@ -13201,7 +13172,6 @@
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-      "dev": true,
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@@ -13217,7 +13187,6 @@
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       "integrity": "sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=",
-      "dev": true,
       "requires": {
         "hash.js": "^1.0.3",
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@@ -13291,8 +13260,7 @@
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       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
-      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
-      "dev": true
+      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
     },
     "invert-kv": {
       "version": "2.0.0",
@@ -13666,14 +13634,12 @@
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       "resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
-      "integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A==",
-      "dev": true
+      "integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A=="
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       "resolved": "https://registry.npmjs.org/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz",
-      "integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo=",
-      "dev": true
+      "integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo="
     },
     "minimatch": {
       "version": "3.0.4",