diff --git a/package.json b/package.json
index 27ab3fe4..88fb22b3 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   "devDependencies": {
     "bluebird": "^2.9.9",
     "mocha": "^2.1.0",
-    "should": "^5.0.0"
+    "should": "^8.0.2"
   },
   "dependencies": {
     "async": "~1.0.0",
diff --git a/test/include.test.js b/test/include.test.js
index 3f954a70..07cf73a9 100644
--- a/test/include.test.js
+++ b/test/include.test.js
@@ -102,7 +102,8 @@ describe('include', function () {
       user.id.should.eql(passport.ownerId);
       user.__cachedRelations.should.have.property('posts');
       user.should.have.property('posts');
-      user.toJSON().should.have.property('posts').and.be.an.Array.with.lengthOf(0);
+      user.toJSON().should.have.property('posts').and.be.an.Array().with
+          .length(0);
       done();
     });
   });