diff --git a/package-lock.json b/package-lock.json
index dd040bc..874ec96 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -149,9 +149,9 @@
       }
     },
     "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=="
     },
     "acorn-jsx": {
       "version": "5.0.1",
@@ -165,13 +165,6 @@
       "integrity": "sha512-FHhXoiF0Uch3IqsrnPpWwCtiv5PYvipTpT1k9lDMgQVVYc9iDuSl5zdJV358aI8twfHCYMFBRVYvAVki9wC/ng==",
       "requires": {
         "acorn": "^6.2.0"
-      },
-      "dependencies": {
-        "acorn": {
-          "version": "6.2.1",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.2.1.tgz",
-          "integrity": "sha512-JD0xT5FCRDNyjDda3Lrg/IxFscp9q4tiYtxE1/nOzlKCk7hIRuYjhq1kCNkbPjMRMZuFq20HNQn1I9k8Oj0E+Q=="
-        }
       }
     },
     "acorn-walk": {