diff --git a/package-lock.json b/package-lock.json
index 725bddc..fcf120d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -51,9 +51,9 @@
             }
         },
         "acorn": {
-            "version": "6.1.1",
-            "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
-            "integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA==",
+            "version": "6.4.1",
+            "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+            "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
             "dev": true
         },
         "acorn-dynamic-import": {
@@ -1981,14 +1981,6 @@
                 "acorn": "^6.0.7",
                 "acorn-jsx": "^5.0.0",
                 "eslint-visitor-keys": "^1.0.0"
-            },
-            "dependencies": {
-                "acorn": {
-                    "version": "6.1.1",
-                    "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
-                    "integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA==",
-                    "dev": true
-                }
             }
         },
         "esprima": {