diff --git a/package-lock.json b/package-lock.json
index 2bec7e0..2eadf16 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -53,7 +53,8 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "asynckit": {
       "version": "0.4.0",
@@ -167,6 +168,7 @@
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
       "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
       "dev": true,
+      "optional": true,
       "requires": {
         "delayed-stream": "~1.0.0"
       }
@@ -229,7 +231,8 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
       "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "ecc-jsbn": {
       "version": "0.1.2",
@@ -303,7 +306,8 @@
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
       "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "fast-deep-equal": {
       "version": "2.0.1",
@@ -406,9 +410,9 @@
       "dev": true
     },
     "hosted-git-info": {
-      "version": "2.8.4",
-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.4.tgz",
-      "integrity": "sha512-pzXIvANXEFrc5oFFXRMkbLPQ2rXRoDERwDLyrcUxGhaZhgP54BBSl9Oheh7Vv0T090cszWBxPjkQQ5Sq1PbBRQ==",
+      "version": "2.8.9",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.9.tgz",
+      "integrity": "sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==",
       "dev": true
     },
     "http-signature": {
@@ -496,7 +500,8 @@
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz",
       "integrity": "sha1-peZUwuWi3rXyAdls77yoDA7y9RM=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "json-parse-better-errors": {
       "version": "1.0.2",
@@ -593,13 +598,15 @@
       "version": "1.40.0",
       "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.40.0.tgz",
       "integrity": "sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "mime-types": {
       "version": "2.1.24",
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.24.tgz",
       "integrity": "sha512-WaFHS3MCl5fapm3oLxU4eYDw77IQM2ACcxQ9RIxfaC3ooc6PFuBMGZZsYpvoXS5D5QTWPieo1jjLdAm3TBP3cQ==",
       "dev": true,
+      "optional": true,
       "requires": {
         "mime-db": "1.40.0"
       }
@@ -825,13 +832,15 @@
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz",
       "integrity": "sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "safer-buffer": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "semver": {
       "version": "5.7.1",
@@ -977,7 +986,8 @@
       "version": "0.14.5",
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "uri-js": {
       "version": "4.2.2",