diff --git a/package-lock.json b/package-lock.json
index e2fac0d..f911075 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -145,9 +145,9 @@
 			"integrity": "sha512-ffCdcrEE5h8DqVxinQjo+2d1q+FV5z7iNtPofw3JsrltSoSVlOGaW0rY8XxtO9XukdTn8TaCGWmk2VFGhI70mg=="
 		},
 		"acorn": {
-			"version": "6.3.0",
-			"resolved": "https://registry.npmjs.org/acorn/-/acorn-6.3.0.tgz",
-			"integrity": "sha512-/czfa8BwS88b9gWQVhc8eknunSA2DoJpJyTQkhheIf5E48u1N0R4q/YxxsAeqRrmK9TQ/uYfgLDfZo91UlANIA==",
+			"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": {