diff --git a/package-lock.json b/package-lock.json
index cbb5893..344c9ef 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -380,7 +380,7 @@
         },
         "chalk": {
           "version": "1.1.3",
-          "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,
           "requires": {
@@ -1423,7 +1423,7 @@
       "dependencies": {
         "pify": {
           "version": "2.3.0",
-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
           "dev": true
         }
@@ -1495,13 +1495,13 @@
       "dependencies": {
         "file-type": {
           "version": "3.9.0",
-          "resolved": "http://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
+          "resolved": "https://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
           "integrity": "sha1-JXoHg4TR24CHvESdEH1SpSZyuek=",
           "dev": true
         },
         "get-stream": {
           "version": "2.3.1",
-          "resolved": "http://registry.npmjs.org/get-stream/-/get-stream-2.3.1.tgz",
+          "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-2.3.1.tgz",
           "integrity": "sha1-Xzj5PzRgCWZu4BUKBUFn+Rvdld4=",
           "dev": true,
           "requires": {
@@ -1511,7 +1511,7 @@
         },
         "pify": {
           "version": "2.3.0",
-          "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
           "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
           "dev": true
         }
@@ -2156,7 +2156,7 @@
         },
         "uuid": {
           "version": "2.0.1",
-          "resolved": "http://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
           "integrity": "sha1-wqMN7bPlNdcsz4LjQ5QaULqFM6w=",
           "dev": true
         }
@@ -4975,9 +4975,9 @@
       }
     },
     "npm-registry-fetch": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/npm-registry-fetch/-/npm-registry-fetch-4.0.0.tgz",
-      "integrity": "sha512-Jllq35Jag8dtv0M17ue74XtdQTyqKzuAYGiX9mAjOhkmNjib3bBUgK6mUY61+AHnXeSRobQkpY3/xIOS/omptw==",
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/npm-registry-fetch/-/npm-registry-fetch-4.0.5.tgz",
+      "integrity": "sha512-yQ0/U4fYpCCqmueB2g8sc+89ckQ3eXpmU4+Yi2j5o/r0WkKvE2+Y0tK3DEILAtn2UaQTkjTHxIXe2/CSdit+/Q==",
       "dev": true,
       "requires": {
         "JSONStream": "^1.3.4",
@@ -4985,7 +4985,8 @@
         "figgy-pudding": "^3.4.1",
         "lru-cache": "^5.1.1",
         "make-fetch-happen": "^5.0.0",
-        "npm-package-arg": "^6.1.0"
+        "npm-package-arg": "^6.1.0",
+        "safe-buffer": "^5.2.0"
       },
       "dependencies": {
         "lru-cache": {
@@ -4997,10 +4998,16 @@
             "yallist": "^3.0.2"
           }
         },
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+          "dev": true
+        },
         "yallist": {
-          "version": "3.0.3",
-          "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
-          "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==",
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
+          "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==",
           "dev": true
         }
       }
@@ -6524,7 +6531,7 @@
     },
     "scrypt-js": {
       "version": "2.0.3",
-      "resolved": "http://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.3.tgz",
+      "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.3.tgz",
       "integrity": "sha1-uwBAvgMEPamgEqLOqfyfhSz8h9Q=",
       "dev": true
     },
@@ -6574,7 +6581,7 @@
       "dependencies": {
         "commander": {
           "version": "2.8.1",
-          "resolved": "http://registry.npmjs.org/commander/-/commander-2.8.1.tgz",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.8.1.tgz",
           "integrity": "sha1-Br42f+v9oMMwqh4qBy09yXYkJdQ=",
           "dev": true,
           "requires": {
@@ -7548,7 +7555,7 @@
     },
     "tar": {
       "version": "2.2.1",
-      "resolved": "http://registry.npmjs.org/tar/-/tar-2.2.1.tgz",
+      "resolved": "https://registry.npmjs.org/tar/-/tar-2.2.1.tgz",
       "integrity": "sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=",
       "dev": true,
       "requires": {
@@ -7587,7 +7594,7 @@
       "dependencies": {
         "bluebird": {
           "version": "2.11.0",
-          "resolved": "http://registry.npmjs.org/bluebird/-/bluebird-2.11.0.tgz",
+          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-2.11.0.tgz",
           "integrity": "sha1-U0uQM8AiyVecVro7Plpcqvu2UOE=",
           "dev": true
         }
@@ -8333,7 +8340,7 @@
         },
         "buffer": {
           "version": "3.6.0",
-          "resolved": "http://registry.npmjs.org/buffer/-/buffer-3.6.0.tgz",
+          "resolved": "https://registry.npmjs.org/buffer/-/buffer-3.6.0.tgz",
           "integrity": "sha1-pyyTb3e5a/UvX357RnGAYoVR3vs=",
           "dev": true,
           "requires": {
@@ -8774,7 +8781,7 @@
         },
         "uuid": {
           "version": "2.0.1",
-          "resolved": "http://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
           "integrity": "sha1-wqMN7bPlNdcsz4LjQ5QaULqFM6w=",
           "dev": true
         }
@@ -8965,7 +8972,7 @@
         },
         "utf8": {
           "version": "2.1.1",
-          "resolved": "http://registry.npmjs.org/utf8/-/utf8-2.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/utf8/-/utf8-2.1.1.tgz",
           "integrity": "sha1-LgHbAvfY0JRPdxBPFgnrDDBM92g=",
           "dev": true
         }