diff --git a/package-lock.json b/package-lock.json
index 8ab8464..74d9a25 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -457,9 +457,9 @@
       }
     },
     "acorn": {
-      "version": "6.0.6",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.6.tgz",
-      "integrity": "sha512-5M3G/A4uBSMIlfJ+h9W125vJvPFH/zirISsW5qfxF5YzEvXJCtolLoQvM5yZft0DvMcUrPGKPOlgEu55I6iUtA==",
+      "version": "6.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
       "dev": true
     },
     "acorn-jsx": {