diff --git a/package-lock.json b/package-lock.json
index 69ced65..2b72ea3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,9 +14,9 @@
       }
     },
     "acorn": {
-      "version": "5.6.1",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.6.1.tgz",
-      "integrity": "sha512-XH4o5BK5jmw9PzSGK7mNf+/xV+mPxQxGZoeC36OVsJZYV77JAG9NnI7T90hoUpI/C1TOfXWTvugRdZ9ZR3iE2Q==",
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
       "dev": true
     },
     "acorn-jsx": {
@@ -31,7 +31,7 @@
         "acorn": {
           "version": "3.3.0",
           "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
-          "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
+          "integrity": "sha512-OLUyIIZ7mF5oaAUT1w0TFqQS81q3saT46x8t7ukpPjMNk+nbs4ZHhs7ToV8EWnLYLepjETXd4XaCE4uxkMeqUw==",
           "dev": true
         }
       }