diff --git a/package-lock.json b/package-lock.json
index 7388cea..d432e8c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1828,9 +1828,9 @@
       }
     },
     "acorn": {
-      "version": "7.1.0",
-      "resolved": "http://r.cnpmjs.org/acorn/download/acorn-7.1.0.tgz",
-      "integrity": "sha1-lJ028sKSU12mAig1hsJHfFfrLWw="
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
+      "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg=="
     },
     "acorn-globals": {
       "version": "4.3.4",
@@ -1842,9 +1842,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "6.4.0",
-          "resolved": "http://r.cnpmjs.org/acorn/download/acorn-6.4.0.tgz",
-          "integrity": "sha1-tlnS/7r6JLr12xzbsslKmD7NJ4Q="
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA=="
         }
       }
     },
@@ -6639,9 +6639,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "6.4.0",
-          "resolved": "http://r.cnpmjs.org/acorn/download/acorn-6.4.0.tgz",
-          "integrity": "sha1-tlnS/7r6JLr12xzbsslKmD7NJ4Q="
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA=="
         },
         "jsdom": {
           "version": "14.1.0",
@@ -7575,9 +7575,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "5.7.3",
-          "resolved": "http://r.cnpmjs.org/acorn/download/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=="
         }
       }
     },
@@ -13426,9 +13426,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "6.4.0",
-          "resolved": "http://r.cnpmjs.org/acorn/download/acorn-6.4.0.tgz",
-          "integrity": "sha1-tlnS/7r6JLr12xzbsslKmD7NJ4Q="
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA=="
         },
         "cacache": {
           "version": "12.0.3",