diff --git a/package-lock.json b/package-lock.json
index c30ac86..08daa1a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1064,9 +1064,9 @@
             }
         },
         "acorn": {
-            "version": "6.4.0",
-            "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.0.tgz",
-            "integrity": "sha512-gac8OEcQ2Li1dxIEWGZzsp2BitJxwkwcOm0zHAJLcPJaVvm58FRnk6RkuLRpU1EujipU2ZFODv2P9DLMfnV8mw=="
+            "version": "6.4.1",
+            "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+            "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA=="
         },
         "acorn-jsx": {
             "version": "5.1.0",
@@ -1084,9 +1084,9 @@
             },
             "dependencies": {
                 "acorn": {
-                    "version": "7.1.0",
-                    "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
-                    "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ=="
+                    "version": "7.1.1",
+                    "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
+                    "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg=="
                 }
             }
         },
@@ -3758,7 +3758,8 @@
                 },
                 "ansi-regex": {
                     "version": "2.1.1",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "aproba": {
                     "version": "1.2.0",
@@ -3776,11 +3777,13 @@
                 },
                 "balanced-match": {
                     "version": "1.0.0",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "brace-expansion": {
                     "version": "1.1.11",
                     "bundled": true,
+                    "optional": true,
                     "requires": {
                         "balanced-match": "^1.0.0",
                         "concat-map": "0.0.1"
@@ -3793,15 +3796,18 @@
                 },
                 "code-point-at": {
                     "version": "1.1.0",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "concat-map": {
                     "version": "0.0.1",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "console-control-strings": {
                     "version": "1.1.0",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "core-util-is": {
                     "version": "1.0.2",
@@ -3904,7 +3910,8 @@
                 },
                 "inherits": {
                     "version": "2.0.4",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "ini": {
                     "version": "1.3.5",
@@ -3914,6 +3921,7 @@
                 "is-fullwidth-code-point": {
                     "version": "1.0.0",
                     "bundled": true,
+                    "optional": true,
                     "requires": {
                         "number-is-nan": "^1.0.0"
                     }
@@ -3926,17 +3934,20 @@
                 "minimatch": {
                     "version": "3.0.4",
                     "bundled": true,
+                    "optional": true,
                     "requires": {
                         "brace-expansion": "^1.1.7"
                     }
                 },
                 "minimist": {
                     "version": "0.0.8",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "minipass": {
                     "version": "2.9.0",
                     "bundled": true,
+                    "optional": true,
                     "requires": {
                         "safe-buffer": "^5.1.2",
                         "yallist": "^3.0.0"
@@ -3953,6 +3964,7 @@
                 "mkdirp": {
                     "version": "0.5.1",
                     "bundled": true,
+                    "optional": true,
                     "requires": {
                         "minimist": "0.0.8"
                     }
@@ -4033,7 +4045,8 @@
                 },
                 "number-is-nan": {
                     "version": "1.0.1",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "object-assign": {
                     "version": "4.1.1",
@@ -4043,6 +4056,7 @@
                 "once": {
                     "version": "1.4.0",
                     "bundled": true,
+                    "optional": true,
                     "requires": {
                         "wrappy": "1"
                     }
@@ -4118,7 +4132,8 @@
                 },
                 "safe-buffer": {
                     "version": "5.1.2",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "safer-buffer": {
                     "version": "2.1.2",
@@ -4148,6 +4163,7 @@
                 "string-width": {
                     "version": "1.0.2",
                     "bundled": true,
+                    "optional": true,
                     "requires": {
                         "code-point-at": "^1.0.0",
                         "is-fullwidth-code-point": "^1.0.0",
@@ -4165,6 +4181,7 @@
                 "strip-ansi": {
                     "version": "3.0.1",
                     "bundled": true,
+                    "optional": true,
                     "requires": {
                         "ansi-regex": "^2.0.0"
                     }
@@ -4203,11 +4220,13 @@
                 },
                 "wrappy": {
                     "version": "1.0.2",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 },
                 "yallist": {
                     "version": "3.1.1",
-                    "bundled": true
+                    "bundled": true,
+                    "optional": true
                 }
             }
         },