diff --git a/package-lock.json b/package-lock.json
index a9b8dd2..2bbed62 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -194,7 +194,8 @@
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+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
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@@ -327,7 +328,8 @@
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+      "integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=",
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@@ -344,11 +346,6 @@
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@@ -396,13 +393,28 @@
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@@ -411,11 +423,6 @@
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@@ -631,6 +633,11 @@
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@@ -672,6 +680,11 @@
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-      "integrity": "sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg="
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@@ -1468,20 +1484,17 @@
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-      "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
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@@ -1569,11 +1579,6 @@
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@@ -2899,7 +2876,8 @@
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@@ -4020,14 +3998,6 @@
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@@ -4636,7 +4576,8 @@
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+      "dev": true
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@@ -4699,13 +4640,28 @@
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-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
-      "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.0.tgz",
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-        "code-point-at": "^1.0.0",
-        "is-fullwidth-code-point": "^1.0.0",
-        "strip-ansi": "^3.0.0"
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.0"
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+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
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+        },
+        "strip-ansi": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
+          "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+          "requires": {
+            "ansi-regex": "^5.0.0"
+          }
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     "string_decoder": {
@@ -4721,18 +4677,11 @@
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       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+      "dev": true,
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         "ansi-regex": "^2.0.0"
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-    "strip-bom": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
-      "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
-      "requires": {
-        "is-utf8": "^0.2.0"
-      }
-    },
     "strip-json-comments": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
@@ -4937,6 +4886,7 @@
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+      "dev": true,
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         "spdx-expression-parse": "^3.0.0"
@@ -4968,16 +4918,6 @@
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-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/which-module/-/which-module-1.0.0.tgz",
-      "integrity": "sha1-u6Y8qGGUiZT/MHc2CJ47lgJsKk8="
-    },
-    "window-size": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.2.0.tgz",
-      "integrity": "sha1-tDFbtCFKPXBY6+7okuE/ok2YsHU="
-    },
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       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
@@ -4985,12 +4925,49 @@
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-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
-      "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
+      "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
       "requires": {
-        "string-width": "^1.0.1",
-        "strip-ansi": "^3.0.1"
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
+          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg=="
+        },
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="
+        },
+        "strip-ansi": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
+          "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+          "requires": {
+            "ansi-regex": "^5.0.0"
+          }
+        }
       }
     },
     "wrappy": {
@@ -5014,9 +4991,9 @@
       "dev": true
     },
     "y18n": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
+      "version": "5.0.5",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.5.tgz",
+      "integrity": "sha512-hsRUr4FFrvhhRH12wOdfs38Gy7k2FFzB9qgN9v3aLykRq0dRcdcpz5C9FxdS2NuhOrI/628b/KSTJ3rwHysYSg=="
     },
     "yallist": {
       "version": "2.1.2",
@@ -5025,34 +5002,23 @@
       "dev": true
     },
     "yargs": {
-      "version": "4.8.1",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-4.8.1.tgz",
-      "integrity": "sha1-wMQpJMpKqmsObaFznfshZDn53cA=",
-      "requires": {
-        "cliui": "^3.2.0",
-        "decamelize": "^1.1.1",
-        "get-caller-file": "^1.0.1",
-        "lodash.assign": "^4.0.3",
-        "os-locale": "^1.4.0",
-        "read-pkg-up": "^1.0.1",
+      "version": "16.0.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.0.0.tgz",
+      "integrity": "sha512-Ykb00VnWjee855QmeCrDAAmhVagt0T8PMML9WS2YrcU0VtvbeGq02MD7UiWmK6biiVPas6CaXmJNetL4Ye4+ng==",
+      "requires": {
+        "cliui": "^7.0.0",
+        "escalade": "^3.0.2",
+        "get-caller-file": "^2.0.5",
         "require-directory": "^2.1.1",
-        "require-main-filename": "^1.0.1",
-        "set-blocking": "^2.0.0",
-        "string-width": "^1.0.1",
-        "which-module": "^1.0.0",
-        "window-size": "^0.2.0",
-        "y18n": "^3.2.1",
-        "yargs-parser": "^2.4.1"
+        "string-width": "^4.2.0",
+        "y18n": "^5.0.1",
+        "yargs-parser": "^19.0.4"
       }
     },
     "yargs-parser": {
-      "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-2.4.1.tgz",
-      "integrity": "sha1-hVaN488VD/SfpRgl8DqMiA3cxcQ=",
-      "requires": {
-        "camelcase": "^3.0.0",
-        "lodash.assign": "^4.0.6"
-      }
+      "version": "19.0.4",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-19.0.4.tgz",
+      "integrity": "sha512-eXeQm7yXRjPFFyf1voPkZgXQZJjYfjgQUmGPbD2TLtZeIYzvacgWX7sQ5a1HsRgVP+pfKAkRZDNtTGev4h9vhw=="
     }
   }
 }
diff --git a/package.json b/package.json
index 35f38cd..33b4b66 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "lodash": "^4.13.1",
     "moment": "^2.13.0",
     "shelljs": "^0.7.0",
-    "yargs": "^4.7.1"
+    "yargs": "^16.0.0"
   },
   "devDependencies": {
     "coveralls": "^3.0.1",