diff --git a/package-lock.json b/package-lock.json
index 7770adb..c78aff7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1171,7 +1171,7 @@
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-            "resolved": "http://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
+            "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
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             "dev": true
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@@ -1303,7 +1303,7 @@
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                 "util": {
                     "version": "0.10.3",
-                    "resolved": "http://registry.npmjs.org/util/-/util-0.10.3.tgz",
+                    "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
                     "integrity": "sha1-evsa/lCAUkZInj23/g7TeTNqwPk=",
                     "dev": true,
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@@ -2684,7 +2684,7 @@
         },
         "chalk": {
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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",
             "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
             "dev": true,
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@@ -2951,7 +2951,7 @@
                 },
                 "readable-stream": {
                     "version": "2.0.6",
-                    "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.0.6.tgz",
+                    "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.0.6.tgz",
                     "integrity": "sha1-j5A0HmilPMySh4jaz80Rs265t44=",
                     "dev": true,
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@@ -2965,7 +2965,7 @@
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                 "string_decoder": {
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-                    "resolved": "http://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
+                    "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
                     "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
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@@ -3322,7 +3322,7 @@
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                     "version": "1.2.0",
-                    "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+                    "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
                     "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
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@@ -3419,9 +3419,9 @@
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-            "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.1.tgz",
-            "integrity": "sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==",
+            "version": "6.5.3",
+            "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+            "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
             "dev": true,
             "requires": {
                 "bn.js": "^4.4.0",
@@ -7249,7 +7249,7 @@
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         "jsesc": {
             "version": "1.3.0",
-            "resolved": "http://registry.npmjs.org/jsesc/-/jsesc-1.3.0.tgz",
+            "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-1.3.0.tgz",
             "integrity": "sha1-RsP+yMGJKxKwgz25vHYiF226s0s=",
             "dev": true
         },
@@ -7288,7 +7288,7 @@
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         "json5": {
             "version": "0.5.1",
-            "resolved": "http://registry.npmjs.org/json5/-/json5-0.5.1.tgz",
+            "resolved": "https://registry.npmjs.org/json5/-/json5-0.5.1.tgz",
             "integrity": "sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=",
             "dev": true
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@@ -9100,7 +9100,7 @@
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                     "version": "0.5.0",
-                    "resolved": "http://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
+                    "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
                     "integrity": "sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=",
                     "dev": true
                 }
@@ -10290,7 +10290,7 @@
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         "strip-ansi": {
             "version": "3.0.1",
-            "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+            "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
             "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
             "dev": true,
             "requires": {