diff --git a/dummy-engine/package-lock.json b/dummy-engine/package-lock.json
index 5cd8b16..dcb9c3d 100644
--- a/dummy-engine/package-lock.json
+++ b/dummy-engine/package-lock.json
@@ -214,9 +214,9 @@
       }
     },
     "bson": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/bson/-/bson-1.0.5.tgz",
-      "integrity": "sha512-D4SCtud6mlEb48kXdTHU31DRU0bsgOJ+4St1Dcx30uYNnf/aGc+hC9gHB/z0Eth8HYYs/hr0SFdyZViht19SwA=="
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.4.tgz",
+      "integrity": "sha512-S/yKGU1syOMzO86+dGpg2qGoDL0zvzcb262G+gqEy6TgP6rt6z6qxSFX/8X6vLC91P7G7C3nLs0+bvDzmvBA3Q=="
     },
     "buffer-equal-constant-time": {
       "version": "1.0.1",
diff --git a/dummy-engine/package.json b/dummy-engine/package.json
index 8a497a5..1fa4b2a 100644
--- a/dummy-engine/package.json
+++ b/dummy-engine/package.json
@@ -9,7 +9,7 @@
     "@alicloud/sms-sdk": "^1.0.8",
     "async": "^2.1.4",
     "body-parser": "^1.13.2",
-    "bson": "^1.0.5",
+    "bson": "^1.1.4",
     "connect-flash": "^0.1.1",
     "connect-mongodb": "^1.1.5",
     "cookie-parser": "^1.3.5",