diff --git a/package-lock.json b/package-lock.json
index 52bc072..5b8920a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1077,9 +1077,9 @@
       }
     },
     "acorn": {
-      "version": "5.7.3",
-      "resolved": "https://duanemorris.artifactoryonline.com/duanemorris/api/npm/npm/acorn/-/acorn-5.7.3.tgz",
-      "integrity": "sha1-Z6ojG/iBKXS4UjWpZ3Hra9B+onk=",
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
       "dev": true
     },
     "acorn-dynamic-import": {