diff --git a/appengine/datastore/app.js b/appengine/datastore/app.js
index b25d022065..319c12cbbd 100644
--- a/appengine/datastore/app.js
+++ b/appengine/datastore/app.js
@@ -27,10 +27,10 @@ app.enable('trust proxy');
 // the project specified by the GOOGLE_CLOUD_PROJECT environment variable. See
 // https://github.com/GoogleCloudPlatform/google-cloud-node/blob/master/docs/authentication.md
 // These environment variables are set automatically on Google App Engine
-const Datastore = require('@google-cloud/datastore');
+const {Datastore} = require('@google-cloud/datastore');
 
 // Instantiate a datastore client
-const datastore = Datastore();
+const datastore = new Datastore();
 
 /**
  * Insert a visit record into the database.
diff --git a/appengine/datastore/package.json b/appengine/datastore/package.json
index dd2f2622ee..f6f29caa75 100644
--- a/appengine/datastore/package.json
+++ b/appengine/datastore/package.json
@@ -18,7 +18,7 @@
     "test": "npm run system-test"
   },
   "dependencies": {
-    "@google-cloud/datastore": "^2.0.0",
+    "@google-cloud/datastore": "^3.0.0",
     "express": "^4.16.4"
   },
   "devDependencies": {
diff --git a/functions/datastore/index.js b/functions/datastore/index.js
index 6516974576..1d33d48cba 100644
--- a/functions/datastore/index.js
+++ b/functions/datastore/index.js
@@ -15,10 +15,10 @@
 
 'use strict';
 
-const Datastore = require('@google-cloud/datastore');
+const {Datastore} = require('@google-cloud/datastore');
 
 // Instantiates a client
-const datastore = Datastore();
+const datastore = new Datastore();
 
 /**
  * Gets a Datastore key from the kind/key pair in the request.
diff --git a/functions/datastore/package.json b/functions/datastore/package.json
index 63482cc466..0081821ae6 100644
--- a/functions/datastore/package.json
+++ b/functions/datastore/package.json
@@ -17,7 +17,7 @@
     "test": "npm run system-test"
   },
   "dependencies": {
-    "@google-cloud/datastore": "2.0.0",
+    "@google-cloud/datastore": "3.1.2",
     "supertest": "^3.0.0"
   },
   "devDependencies": {
diff --git a/functions/datastore/test/index.test.js b/functions/datastore/test/index.test.js
index ed2964f5e2..e1154b9cf6 100644
--- a/functions/datastore/test/index.test.js
+++ b/functions/datastore/test/index.test.js
@@ -16,8 +16,8 @@
 'use strict';
 
 const assert = require('assert');
-const Datastore = require('@google-cloud/datastore');
-const datastore = Datastore();
+const {Datastore} = require('@google-cloud/datastore');
+const datastore = new Datastore();
 const program = require('../');
 const uuid = require('uuid');