diff --git a/package-lock.json b/package-lock.json
index f247a24..1903992 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -727,7 +727,7 @@
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@@ -1082,7 +1082,7 @@
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-          "resolved": "http://registry.npmjs.org/events/-/events-1.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/events/-/events-1.1.1.tgz",
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
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@@ -1447,7 +1447,7 @@
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-      "resolved": "http://registry.npmjs.org/color/-/color-0.11.4.tgz",
+      "resolved": "https://registry.npmjs.org/color/-/color-0.11.4.tgz",
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@@ -2018,18 +2018,32 @@
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+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
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-        "brorand": "^1.0.1",
+        "bn.js": "^4.11.9",
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-        "inherits": "^2.0.1",
-        "minimalistic-assert": "^1.0.0",
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+        "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/bn.js/-/bn.js-4.12.0.tgz",
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+          "dev": true
+        },
+        "inherits": {
+          "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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@@ -4614,7 +4628,7 @@
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-      "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
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@@ -4715,7 +4729,7 @@
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-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
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@@ -5515,7 +5529,7 @@
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+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
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@@ -5972,7 +5986,7 @@
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-          "resolved": "http://registry.npmjs.org/color/-/color-1.0.3.tgz",
+          "resolved": "https://registry.npmjs.org/color/-/color-1.0.3.tgz",
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@@ -6123,7 +6137,7 @@
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@@ -7711,7 +7725,7 @@
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-      "resolved": "http://registry.npmjs.org/reduce-css-calc/-/reduce-css-calc-1.3.0.tgz",
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@@ -8530,7 +8544,7 @@
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@@ -9122,7 +9136,7 @@
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-          "resolved": "http://registry.npmjs.org/events/-/events-1.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/events/-/events-1.1.1.tgz",
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