diff --git a/package-lock.json b/package-lock.json
index 758b367..addd397 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -919,7 +919,7 @@
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-      "resolved": "http://registry.npmjs.org/@types/node/-/node-8.9.5.tgz",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.9.5.tgz",
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@@ -1537,7 +1537,7 @@
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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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           "dev": true,
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@@ -3620,7 +3620,7 @@
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         "expand-range": {
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-          "resolved": "http://registry.npmjs.org/expand-range/-/expand-range-0.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/expand-range/-/expand-range-0.1.1.tgz",
           "integrity": "sha1-TLjtoJk8pW+k9B/ELzy7TMrf8EQ=",
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@@ -6373,12 +6373,6 @@
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       "dev": true
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-    "json-schema": {
-      "version": "0.2.3",
-      "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz",
-      "integrity": "sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM=",
-      "dev": true
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@@ -6415,15 +6409,23 @@
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-      "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
-      "integrity": "sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=",
+      "version": "1.4.2",
+      "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.2.tgz",
+      "integrity": "sha512-P2bSOMAc/ciLz6DzgjVlGJP9+BrJWu5UDGK70C2iweC5QBIeFf0ZXRvGjEj2uYgrY2MkAAhsSWHDWlFtEroZWw==",
       "dev": true,
       "requires": {
         "assert-plus": "1.0.0",
         "extsprintf": "1.3.0",
-        "json-schema": "0.2.3",
+        "json-schema": "0.4.0",
         "verror": "1.10.0"
+      },
+      "dependencies": {
+        "json-schema": {
+          "version": "0.4.0",
+          "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.4.0.tgz",
+          "integrity": "sha512-es94M3nTIfsEPisRafak+HDLfHXnKBhV3vU5eqPcS3flIWqcxJWgXHXiey3YrpaNsanY5ei1VoYEbOzijuq9BA==",
+          "dev": true
+        }
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     "jszip": {
@@ -8162,7 +8164,7 @@
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         "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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@@ -10332,7 +10334,7 @@
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       "version": "2.7.2",
-      "resolved": "http://registry.npmjs.org/typescript/-/typescript-2.7.2.tgz",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.7.2.tgz",
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       "dev": true
     },