diff --git a/package-lock.json b/package-lock.json
index 9bc847e..94a03cf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -507,6 +507,7 @@
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@@ -1335,9 +1336,9 @@
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+      "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.1.tgz",
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-      "integrity": "sha1-mXjOMXOIxkmth5MCjDR37wRKi1E="
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+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
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+      "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
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@@ -3065,11 +3073,6 @@
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         "extend": "3.0.1",
@@ -12410,6 +12449,7 @@
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
       "dev": true,
+      "optional": true,
       "requires": {
         "prelude-ls": "1.1.2"
       }
@@ -12525,7 +12565,8 @@
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.7.0.tgz",
       "integrity": "sha1-a7rwh3UA02vjTsqlhODbn+8DUgk=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "union-value": {
       "version": "1.0.0",
@@ -13940,6 +13981,7 @@
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.2.tgz",
       "integrity": "sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==",
+      "optional": true,
       "requires": {
         "string-width": "1.0.2"
       }
diff --git a/package.json b/package.json
index c6dbcac..396e406 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "express": "^4.15.2",
     "hammerjs": "^2.0.8",
     "http-status": "^1.0.1",
-    "mongoose": "^4.9.7",
+    "mongoose": "^5.7.5",
     "rxjs": "5.5.6",
     "socket.io": "^1.7.4",
     "socket.io-client": "^1.7.4",