diff --git a/chat-sample/package-lock.json b/chat-sample/package-lock.json
index bbfd2d6..9f5a2a5 100644
--- a/chat-sample/package-lock.json
+++ b/chat-sample/package-lock.json
@@ -1058,7 +1058,7 @@
         },
         "whatwg-fetch": {
           "version": "2.0.4",
-          "resolved": "http://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz",
+          "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz",
           "integrity": "sha512-dcQ1GWpOD/eEQ97k66aiEVpNnapVj90/+R+SXTPYGHpYBBypfKJEQjLrvMZ7YXbKm21gXd4NcuxUTjiv1YtLng=="
         }
       }
@@ -8295,9 +8295,9 @@
       "dev": true
     },
     "lodash.defaultsdeep": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/lodash.defaultsdeep/-/lodash.defaultsdeep-4.6.0.tgz",
-      "integrity": "sha1-vsECT4WxvZbL6kBbI8FK1kQ6b4E=",
+      "version": "4.6.1",
+      "resolved": "https://registry.npmjs.org/lodash.defaultsdeep/-/lodash.defaultsdeep-4.6.1.tgz",
+      "integrity": "sha512-3j8wdDzYuWO3lM3Reg03MuQR957t287Rpcxp1njpEa8oDrikb+FwGdW3n+FELh/A6qib6yPit0j/pv9G/yeAqA==",
       "dev": true
     },
     "lodash.kebabcase": {
@@ -10224,7 +10224,7 @@
         },
         "os-locale": {
           "version": "1.4.0",
-          "resolved": "http://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
+          "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
           "integrity": "sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=",
           "requires": {
             "lcid": "^1.0.0"
@@ -10242,7 +10242,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "requires": {
             "ansi-regex": "^2.0.0"
@@ -10255,7 +10255,7 @@
         },
         "yargs": {
           "version": "3.32.0",
-          "resolved": "http://registry.npmjs.org/yargs/-/yargs-3.32.0.tgz",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.32.0.tgz",
           "integrity": "sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=",
           "requires": {
             "camelcase": "^2.0.1",