diff --git a/package-lock.json b/package-lock.json
index ca28758..3822151 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -719,17 +719,29 @@
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-      "integrity": "sha1-ysmvh2LIWDYYcAPI3+GT5eLq5d8=",
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-        "brorand": "^1.0.1",
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-        "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"
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+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
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+        }
       }
     },
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@@ -1161,6 +1173,11 @@
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+    },
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@@ -1323,27 +1340,50 @@
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-      "integrity": "sha1-X8hoaEfs1zSZQDMZprCj8/auSRg=",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/hash-base/-/hash-base-3.1.0.tgz",
+      "integrity": "sha512-1nmYp/rhMDiE7AYkDw+lLwlAzz0AntGIe51F3RfFfEqyQ3feY2eI/NcwC6umIQVOASPMsWJLJScWKSSvzL9IVA==",
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-        "inherits": "^2.0.1",
-        "safe-buffer": "^5.0.1"
+        "inherits": "^2.0.4",
+        "readable-stream": "^3.6.0",
+        "safe-buffer": "^5.2.0"
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+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
+        "readable-stream": {
+          "version": "3.6.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+          "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+          "requires": {
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+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
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+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
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-      "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.3.tgz",
-      "integrity": "sha512-/UETyP0W22QILqS+6HowevwhEFJ3MBJnwTf75Qob9Wz9t0DPuisL8kW8YZMK62dHAKE1c1p+gY1TtOLY+USEHA==",
+      "version": "1.1.7",
+      "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.7.tgz",
+      "integrity": "sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==",
       "requires": {
         "inherits": "^2.0.3",
-        "minimalistic-assert": "^1.0.0"
+        "minimalistic-assert": "^1.0.1"
       },
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-          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
-          "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
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@@ -1840,12 +1880,13 @@
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-      "resolved": "https://registry.npmjs.org/md5.js/-/md5.js-1.3.4.tgz",
-      "integrity": "sha1-6b296UogpawYsENA/Fdk1bCdkB0=",
+      "version": "1.3.5",
+      "resolved": "https://registry.npmjs.org/md5.js/-/md5.js-1.3.5.tgz",
+      "integrity": "sha512-xitP+WxNPcTTOgnTJcrhM0xvdPepipPSf3I8EIpGKeFLjt3PlJLIDG3u8EX53ZIubkb+5U2+3rELYpEhHhzdkg==",
       "requires": {
         "hash-base": "^3.0.0",
-        "inherits": "^2.0.1"
+        "inherits": "^2.0.1",
+        "safe-buffer": "^5.1.2"
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@@ -2099,9 +2140,9 @@
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-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.5.tgz",
-      "integrity": "sha1-PBrfhx6pzWyUMbbqK9dKD/BVxME=",
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
       "dev": true
     },
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@@ -2522,18 +2563,33 @@
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-      "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.5.0.tgz",
-      "integrity": "sha512-e5QIJl8W7Y4tT6LHffVcZAxJjvpgE5Owawv6/XCYPQljE9aP2NFFddQ8OYMKhdLshNu88FfL3qCN3/xYkXGRsA==",
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-        "bindings": "^1.2.1",
-        "bip66": "^1.1.3",
-        "bn.js": "^4.11.3",
-        "create-hash": "^1.1.2",
+      "version": "3.8.0",
+      "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.8.0.tgz",
+      "integrity": "sha512-k5ke5avRZbtl9Tqx/SA7CbY3NF6Ro+Sj9cZxezFzuBlLDmyqPiL8hJJ+EmzD8Ig4LUDByHJ3/iPOVoRixs/hmw==",
+      "requires": {
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+        "bip66": "^1.1.5",
+        "bn.js": "^4.11.8",
+        "create-hash": "^1.2.0",
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-        "elliptic": "^6.2.3",
-        "nan": "^2.2.1",
-        "safe-buffer": "^5.1.0"
+        "elliptic": "^6.5.2",
+        "nan": "^2.14.0",
+        "safe-buffer": "^5.1.2"
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+          "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
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+          "requires": {
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+          }
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+        "nan": {
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+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.15.0.tgz",
+          "integrity": "sha512-8ZtvEnA2c5aYCZYd1cvgdnU6cqwixRoYg70xPLWUws5ORTa/lnw+u4amixRS/Ac5U5mQVgp9pnlSUnbNWFaWZQ=="
+        }
       }
     },
     "semver": {