diff --git a/package-lock.json b/package-lock.json
index db62fa8..7a793da 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3258,9 +3258,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "6.4.0",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.0.tgz",
-          "integrity": "sha512-gac8OEcQ2Li1dxIEWGZzsp2BitJxwkwcOm0zHAJLcPJaVvm58FRnk6RkuLRpU1EujipU2ZFODv2P9DLMfnV8mw==",
+          "version": "6.4.2",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.2.tgz",
+          "integrity": "sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ==",
           "dev": true
         }
       }
@@ -6659,9 +6659,9 @@
       },
       "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
         }
       }