diff --git a/example/package-lock.json b/example/package-lock.json
index 58c346e..858a473 100644
--- a/example/package-lock.json
+++ b/example/package-lock.json
@@ -8526,7 +8526,7 @@
       "resolved": "https://registry.npmjs.org/mongoose/-/mongoose-5.9.2.tgz",
       "integrity": "sha512-Sa1qfqBvUfAgsrXpZjbBoIx8PEDUJSKF5Ous8gnBFI7TPiueSgJjg6GRA7A0teU8AB/vd0h8rl1rD5RQNfWhIw==",
       "requires": {
-        "bson": "1.1.3",
+        "bson": "~1.1.1",
         "kareem": "2.3.1",
         "mongodb": "3.5.3",
         "mongoose-legacy-pluralize": "1.0.2",