diff --git a/package-lock.json b/package-lock.json
index 9c2ee88..342ed69 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -101,7 +101,7 @@
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-          "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": "1.0.2",
@@ -9449,7 +9480,7 @@
     },
     "typechecker": {
       "version": "2.1.0",
-      "resolved": "http://registry.npmjs.org/typechecker/-/typechecker-2.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/typechecker/-/typechecker-2.1.0.tgz",
       "integrity": "sha1-0cIJOlT/ihn1jP+HfuqlTyJC04M="
     },
     "typedarray": {
@@ -9459,7 +9490,7 @@
     },
     "uglify-js": {
       "version": "2.6.4",
-      "resolved": "http://registry.npmjs.org/uglify-js/-/uglify-js-2.6.4.tgz",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.6.4.tgz",
       "integrity": "sha1-ZeovswWck5RpLxX+2HwrNsFrmt8=",
       "requires": {
         "async": "0.2.10",
@@ -9470,7 +9501,7 @@
       "dependencies": {
         "async": {
           "version": "0.2.10",
-          "resolved": "http://registry.npmjs.org/async/-/async-0.2.10.tgz",
+          "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
           "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
         },
         "camelcase": {
@@ -9495,7 +9526,7 @@
         },
         "yargs": {
           "version": "3.10.0",
-          "resolved": "http://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
           "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
           "requires": {
             "camelcase": "1.2.1",
@@ -10138,7 +10169,7 @@
       "dependencies": {
         "acorn": {
           "version": "3.3.0",
-          "resolved": "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
           "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo="
         }
       }
diff --git a/package.json b/package.json
index 2d2a226..8e5e231 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "mongoose": "^5.4.2",
     "morgan": "^1.9.1",
     "multer": "^1.4.2",
-    "nodemailer": "^4.7.0",
+    "nodemailer": "^6.4.16",
     "nodemailer-smtp-transport": "^2.7.4",
     "peer": "^0.2.10",
     "request": "^2.88.0",