diff --git a/package-lock.json b/package-lock.json
index fac4e7f..76b844b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -944,9 +944,9 @@
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     },
     "acorn": {
-      "version": "6.0.5",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.5.tgz",
-      "integrity": "sha512-i33Zgp3XWtmZBMNvCr4azvOFeWVw1Rk6p3hfi3LUDvIFraOMywb1kAtrbi+med14m4Xfpqm3zRZMT+c0FNE7kg=="
+      "version": "6.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA=="
     },
     "acorn-dynamic-import": {
       "version": "4.0.0",