diff --git a/package-lock.json b/package-lock.json
index 9f48173..1e0bbc6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -71,9 +71,9 @@
       }
     },
     "acorn": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
-      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
+      "version": "6.4.2",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.2.tgz",
+      "integrity": "sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ==",
       "dev": true
     },
     "acorn-jsx": {
@@ -1311,12 +1311,6 @@
         "vue-eslint-parser": "^2.0.2"
       },
       "dependencies": {
-        "acorn": {
-          "version": "6.4.1",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
-          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
-          "dev": true
-        },
         "eslint": {
           "version": "5.16.0",
           "resolved": "https://registry.npmjs.org/eslint/-/eslint-5.16.0.tgz",
@@ -1758,9 +1752,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "5.7.3",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-          "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
+          "version": "5.7.4",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+          "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
           "dev": true
         },
         "acorn-jsx": {
@@ -1775,7 +1769,7 @@
             "acorn": {
               "version": "3.3.0",
               "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
-              "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
+              "integrity": "sha512-OLUyIIZ7mF5oaAUT1w0TFqQS81q3saT46x8t7ukpPjMNk+nbs4ZHhs7ToV8EWnLYLepjETXd4XaCE4uxkMeqUw==",
               "dev": true
             }
           }