diff --git a/core/package-lock.json b/core/package-lock.json
index 85de798..8748c9b 100644
--- a/core/package-lock.json
+++ b/core/package-lock.json
@@ -339,7 +339,7 @@
       "dependencies": {
         "chalk": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "requires": {
@@ -950,7 +950,7 @@
     },
     "http-errors": {
       "version": "1.6.3",
-      "resolved": "http://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
+      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
       "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
       "requires": {
         "depd": "~1.1.2",
@@ -1305,9 +1305,9 @@
       "integrity": "sha1-PCV/mDn8DpP/UxSWMiOeuQeD/2Y="
     },
     "moment-timezone": {
-      "version": "0.5.23",
-      "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.23.tgz",
-      "integrity": "sha512-WHFH85DkCfiNMDX5D3X7hpNH3/PUhjTGcD0U1SgfBGZxJ3qUmJh5FdvaFjcClxOvB3rzdfj4oRffbI38jEnC1w==",
+      "version": "0.5.37",
+      "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.37.tgz",
+      "integrity": "sha512-uEDzDNFhfaywRl+vwXxffjjq1q0Vzr+fcQpQ1bU0kbzorfS7zVtZnCnGc8mhWmF39d4g4YriF6kwA75mJKE/Zg==",
       "requires": {
         "moment": ">= 2.9.0"
       }
@@ -1632,7 +1632,7 @@
     },
     "readable-stream": {
       "version": "2.0.6",
-      "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.0.6.tgz",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.0.6.tgz",
       "integrity": "sha1-j5A0HmilPMySh4jaz80Rs265t44=",
       "requires": {
         "core-util-is": "~1.0.0",
@@ -1715,7 +1715,7 @@
     },
     "sax": {
       "version": "1.2.1",
-      "resolved": "http://registry.npmjs.org/sax/-/sax-1.2.1.tgz",
+      "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.1.tgz",
       "integrity": "sha1-e45lYZCyKOgaZq6nSEgNgozS03o="
     },
     "semver": {
@@ -1976,7 +1976,7 @@
           "dependencies": {
             "readable-stream": {
               "version": "2.3.6",
-              "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+              "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
               "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
               "requires": {
                 "core-util-is": "~1.0.0",