diff --git a/package-lock.json b/package-lock.json
index df6368a..912adfa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -94,10 +94,13 @@
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@@ -175,7 +178,6 @@
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-      "integrity": "sha1-SXBJi+YEwgwAXU9cI67NIda0kJk=",
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-      "integrity": "sha1-ukAsJmGU8VlW7xXg/PJCmT9qff0=",
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+        "ajv": "^6.5.5",
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+          "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=",
+          "dev": true
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+          "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
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+          "dev": true
+        }
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@@ -984,8 +1013,7 @@
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-      "dev": true,
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+      "dev": true
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@@ -1062,18 +1090,18 @@
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+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.22.tgz",
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       "dev": true,
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-        "mime-db": "~1.35.0"
+        "mime-db": "~1.38.0"
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@@ -1206,6 +1234,7 @@
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           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -2365,7 +2394,8 @@
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           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -3939,9 +3969,9 @@
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-      "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.8.2.tgz",
-      "integrity": "sha1-Rqarfwrq2N6unsBWV4C31O/rnUM=",
+      "version": "0.9.0",
+      "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
+      "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==",
       "dev": true
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@@ -4069,10 +4099,16 @@
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       "dev": true
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+    "psl": {
+      "version": "1.1.31",
+      "resolved": "https://registry.npmjs.org/psl/-/psl-1.1.31.tgz",
+      "integrity": "sha512-/6pt4+C+T+wZUieKR620OpzN/LlnNKuWjy1iFLQ/UG35JqHlR/89MP1d96dUfkf6Dne3TuLQzOYEYshJ+Hx8mw==",
+      "dev": true
+    },
     "punycode": {
-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
-      "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
       "dev": true
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@@ -4103,31 +4139,31 @@
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-      "resolved": "https://registry.npmjs.org/request/-/request-2.87.0.tgz",
-      "integrity": "sha512-fcogkm7Az5bsS6Sl0sibkbhcKsnyon/jV1kF3ajGmF0c8HrttdKTPRT9hieOaQHA5HEq6r8OyWOo/o781C1tNw==",
+      "version": "2.88.0",
+      "resolved": "https://registry.npmjs.org/request/-/request-2.88.0.tgz",
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       "dev": true,
       "requires": {
         "aws-sign2": "~0.7.0",
-        "aws4": "^1.6.0",
+        "aws4": "^1.8.0",
         "caseless": "~0.12.0",
-        "combined-stream": "~1.0.5",
-        "extend": "~3.0.1",
+        "combined-stream": "~1.0.6",
+        "extend": "~3.0.2",
         "forever-agent": "~0.6.1",
-        "form-data": "~2.3.1",
-        "har-validator": "~5.0.3",
+        "form-data": "~2.3.2",
+        "har-validator": "~5.1.0",
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         "is-typedarray": "~1.0.0",
         "isstream": "~0.1.2",
         "json-stringify-safe": "~5.0.1",
-        "mime-types": "~2.1.17",
-        "oauth-sign": "~0.8.2",
+        "mime-types": "~2.1.19",
+        "oauth-sign": "~0.9.0",
         "performance-now": "^2.1.0",
-        "qs": "~6.5.1",
-        "safe-buffer": "^5.1.1",
-        "tough-cookie": "~2.3.3",
+        "qs": "~6.5.2",
+        "safe-buffer": "^5.1.2",
+        "tough-cookie": "~2.4.3",
         "tunnel-agent": "^0.6.0",
-        "uuid": "^3.1.0"
+        "uuid": "^3.3.2"
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@@ -4253,9 +4289,9 @@
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-      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.14.2.tgz",
-      "integrity": "sha1-xvxhZIo9nE52T9P8306hBeSSupg=",
+      "version": "1.16.1",
+      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.16.1.tgz",
+      "integrity": "sha512-HXXqVUq7+pcKeLqqZj6mHFUMvXtOJt1uoUx09pFW6011inTMxqI8BA8PM95myrIyyKwdnzjdFjLiE6KBPVtJIg==",
       "dev": true,
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@@ -4353,12 +4389,21 @@
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-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.4.tgz",
-      "integrity": "sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==",
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
+      "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
       "dev": true,
       "requires": {
+        "psl": "^1.1.24",
         "punycode": "^1.4.1"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
+          "dev": true
+        }
       }
     },
     "tunnel-agent": {
@@ -4374,8 +4419,7 @@
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       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-      "dev": true,
-      "optional": true
+      "dev": true
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@@ -4398,6 +4442,15 @@
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
       "dev": true
     },
+    "uri-js": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
+      "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
+      "dev": true,
+      "requires": {
+        "punycode": "^2.1.0"
+      }
+    },
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
diff --git a/package.json b/package.json
index ceab3ae..ae41b8c 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
   },
   "devDependencies": {
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-    "coveralls": "3.0.1",
+    "coveralls": "3.0.3",
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     "eslint-plugin-node": "7.0.0",
     "mocha": "5.0.2",