diff --git a/package-lock.json b/package-lock.json
index c887f09..b48d468 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -28,9 +28,9 @@
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     },
     "bignumber.js": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-4.1.0.tgz",
-      "integrity": "sha1-228UBnwUC9RmJIFaeRbJLZtsJLE="
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-9.0.0.tgz",
+      "integrity": "sha512-t/OYhhJ2SD+YGBQcjY8GzzDHEk9f3nerxjtfa6tlMXfe7frs/WozhvCNoGvpM0P3bNf3Gq5ZRMlGr5f3r4/N8A=="
     },
     "brace-expansion": {
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@@ -43,9 +43,9 @@
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-      "version": "2.19.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.19.0.tgz",
-      "integrity": "sha1-9hmKqE5bg8RgVLlN3tv+1e6f8So=",
+      "version": "2.20.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
+      "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
       "optional": true
     },
     "concat-map": {
@@ -55,9 +55,9 @@
       "dev": true
     },
     "date-and-time": {
-      "version": "0.5.0",
-      "resolved": "https://registry.npmjs.org/date-and-time/-/date-and-time-0.5.0.tgz",
-      "integrity": "sha1-SKFTjAkokYh0YxH8Hwx7M1FzbUg="
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/date-and-time/-/date-and-time-0.7.0.tgz",
+      "integrity": "sha512-qPHBPG0AQqbjP7wVf7vLv25/0bZRjYPiJiJtE0t6RqTswJR/6ExCXQLDnL5w4986j7i6470TMtalJxC8/UHrww=="
     },
     "dev-env-installer": {
       "version": "0.0.14",
@@ -184,12 +184,12 @@
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     },
     "raml-typesystem": {
-      "version": "0.0.90",
-      "resolved": "https://registry.npmjs.org/raml-typesystem/-/raml-typesystem-0.0.90.tgz",
-      "integrity": "sha512-jVk30KH69/1UoRzKY0cFJy78QXzBh8JeYutEdcilLSR+PJ0xs3nT/uMpPLk0Zd1pdxQCbHlcn8cLYz7RbMnLVA==",
+      "version": "0.0.92",
+      "resolved": "https://registry.npmjs.org/raml-typesystem/-/raml-typesystem-0.0.92.tgz",
+      "integrity": "sha512-v+fKYYcLLxJ3XqV7ANoG7clqKAUw/BmKVa+P/g07dfMq0qcJ3r/uFb5khw1jol7NXCRyb8hKyRfXN0l1oy/rQw==",
       "requires": {
-        "bignumber.js": "4.1.0",
-        "date-and-time": "0.5.0",
+        "bignumber.js": "9.0.0",
+        "date-and-time": "0.7.0",
         "escape-html": "1.0.3",
         "json-schema-compatibility": "1.1.0",
         "json-to-ast": "2.0.0-alpha1.3",
@@ -222,7 +222,7 @@
     "sax": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
-      "integrity": "sha1-KBYjTiN4vdxOU1T6tcqold9xANk="
+      "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
     },
     "ts-structure-model": {
       "version": "0.0.1",
@@ -262,7 +262,7 @@
     "validator": {
       "version": "10.11.0",
       "resolved": "https://registry.npmjs.org/validator/-/validator-10.11.0.tgz",
-      "integrity": "sha1-ADEI6m6amHTTHMyeUAaFbM12sig=",
+      "integrity": "sha512-X/p3UZerAIsbBfN/IwahhYaBbY68EN/UQBWHtsbXGT5bfrH/p4NQzUCG1kF/rtKaNpnJ7jAu6NGTdSNtyNIXMw==",
       "optional": true
     },
     "wrappy": {
@@ -274,7 +274,7 @@
     "xml2js": {
       "version": "0.4.19",
       "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.19.tgz",
-      "integrity": "sha1-aGwg8hMgnpSr8NG88e+qKRx4J6c=",
+      "integrity": "sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==",
       "requires": {
         "sax": ">=0.6.0",
         "xmlbuilder": "~9.0.1"
@@ -299,7 +299,7 @@
     "z-schema": {
       "version": "3.21.0",
       "resolved": "https://registry.npmjs.org/z-schema/-/z-schema-3.21.0.tgz",
-      "integrity": "sha1-JsdT6F4550HMCLwufDhh1m12ago=",
+      "integrity": "sha512-+MXJmBRZvqn+LInpJBSSETK1XLQqyhKCCNqc7MY7FqiqWCTQddAahg5i0jlfX5dli7gvIfpJvijV3ZlAJRtZ1Q==",
       "optional": true,
       "requires": {
         "commander": "^2.7.1",