diff --git a/package-lock.json b/package-lock.json
index bc698f2..e5f51b2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,17 @@
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-      "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": "1.0.2",
-        "strip-ansi": "3.0.1"
-      },
-      "dependencies": {
-        "string-width": {
-          "version": "1.0.2",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
-          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
-          "requires": {
-            "code-point-at": "1.1.0",
-            "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "3.0.1"
-          }
-        }
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
       }
     },
     "wrappy": {
@@ -484,41 +262,28 @@
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "y18n": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
-    },
-    "yallist": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
-      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
+      "version": "5.0.8",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
+      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA=="
     },
     "yargs": {
-      "version": "10.0.3",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-10.0.3.tgz",
-      "integrity": "sha512-DqBpQ8NAUX4GyPP/ijDGHsJya4tYqLQrjPr95HNsr1YwL3+daCfvBwg7+gIC6IdJhR2kATh3hb61vjzMWEtjdw==",
+      "version": "17.7.1",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.1.tgz",
+      "integrity": "sha512-cwiTb08Xuv5fqF4AovYacTFNxk62th7LKJ6BL9IGUpTJrWoU7/7WdQGTP2SjKf1dUNBGzDd28p/Yfs/GI6JrLw==",
       "requires": {
-        "cliui": "3.2.0",
-        "decamelize": "1.2.0",
-        "find-up": "2.1.0",
-        "get-caller-file": "1.0.2",
-        "os-locale": "2.1.0",
-        "require-directory": "2.1.1",
-        "require-main-filename": "1.0.1",
-        "set-blocking": "2.0.0",
-        "string-width": "2.1.1",
-        "which-module": "2.0.0",
-        "y18n": "3.2.1",
-        "yargs-parser": "8.0.0"
+        "cliui": "^8.0.1",
+        "escalade": "^3.1.1",
+        "get-caller-file": "^2.0.5",
+        "require-directory": "^2.1.1",
+        "string-width": "^4.2.3",
+        "y18n": "^5.0.5",
+        "yargs-parser": "^21.1.1"
       }
     },
     "yargs-parser": {
-      "version": "8.0.0",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-8.0.0.tgz",
-      "integrity": "sha1-IdR2Mw5agieaS4gTRb8GYQLiGcY=",
-      "requires": {
-        "camelcase": "4.1.0"
-      }
+      "version": "21.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
+      "integrity": "sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw=="
     }
   }
 }
diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index da17c35..e024648
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
   "dependencies": {
     "mocha": "^4.0.1",
     "pegjs": "^0.10.0",
-    "yargs": "^10.0.3"
+    "yargs": "^17.7.1"
   },
   "devDependencies": {
     "mkdirp": "^0.5.1"