lock mongoose version to 4.11.14

package.json

@@ -90,7 +90,7 @@
     "method-override": "^2.3.10",
     "mkdirp": "~0.5.1",
     "moment": "^2.18.0",
-    "mongoose": "^4.11.1",
+    "mongoose": "4.11.14",
     "mongoose-paginate": "5.0.x",
     "mongoose-unique-validator": "^1.0.6",
     "multer": "~1.3.0",

yarn.lock

@@ -4292,9 +4292,9 @@ mongoose-unique-validator@^1.0.6:
     lodash.foreach "^4.1.0"
     lodash.get "^4.0.2"
 
-mongoose@^4.11.1:
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/mongoose/-/mongoose-4.12.0.tgz#ba5dcf3b1338c84982f9774c10ca0493102cd830"
+mongoose@4.11.14:
+  version "4.11.14"
+  resolved "https://registry.yarnpkg.com/mongoose/-/mongoose-4.11.14.tgz#b85402aaf28c5c3e45c8ef93fe69544eaa5d00f3"
   dependencies:
     async "2.1.4"
     bson "~1.0.4"