diff --git a/package-lock.json b/package-lock.json
index 04e0a3d..21ccf43 100644
--- a/package-lock.json
+++ b/package-lock.json
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+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA=="
     },
     "uuid": {
       "version": "3.3.2",
@@ -14576,9 +14644,9 @@
       }
     },
     "vary": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/vary/-/vary-1.0.1.tgz",
-      "integrity": "sha1-meSYFWaihhGN+yuBc1ffeZM3bRA="
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg=="
     },
     "verror": {
       "version": "1.10.0",
@@ -14840,7 +14908,7 @@
     },
     "wrap-ansi": {
       "version": "2.1.0",
-      "resolved": "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
       "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
       "requires": {
         "string-width": "1.0.2",
diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 727af6d..2a98e9e
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "crypto-js": "^3.1.6",
     "crypto2": "^2.0.0",
     "electron-rebuild": "^1.8.2",
-    "express": "~4.11.1",
+    "express": "~4.17.3",
     "level-browserify": "^1.1.2",
     "levelgraph": "^2.1.1",
     "merkle": "^0.6.0",