diff --git a/package-lock.json b/package-lock.json
index 6d5e48d..0d35a0b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1123,9 +1123,9 @@
             }
         },
         "acorn": {
-            "version": "6.3.0",
-            "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.3.0.tgz",
-            "integrity": "sha512-/czfa8BwS88b9gWQVhc8eknunSA2DoJpJyTQkhheIf5E48u1N0R4q/YxxsAeqRrmK9TQ/uYfgLDfZo91UlANIA==",
+            "version": "6.4.1",
+            "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+            "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
             "dev": true
         },
         "adjust-sourcemap-loader": {