diff --git a/package-lock.json b/package-lock.json
index 72c29bc..c490cac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,9 +16,9 @@
       "dev": true
     },
     "acorn": {
-      "version": "5.7.3",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-      "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
       "dev": true
     },
     "acorn-es7-plugin": {
@@ -643,7 +643,7 @@
       "integrity": "sha512-EgOxmZ/Lb7tw4EwSKX7ZnfC0P/qRZFEG28dx/690qvhmOJ6hgThYFm5TUWANDLK5NiNKlPBi5WekVGd2+5wPrw==",
       "dev": true,
       "requires": {
-        "acorn": "5.7.3",
+        "acorn": "5.7.4",
         "acorn-es7-plugin": "1.1.7",
         "core-js": "2.5.7",
         "espurify": "1.8.1",