diff --git a/test/parallel/test-microtask-queue-integration-domain.js b/test/parallel/test-microtask-queue-integration-domain.js
index f0d0196ac2f9a7..1e07fa5d415ba3 100644
--- a/test/parallel/test-microtask-queue-integration-domain.js
+++ b/test/parallel/test-microtask-queue-integration-domain.js
@@ -12,13 +12,6 @@ require('domain');
 var implementations = [
   function(fn) {
     Promise.resolve().then(fn);
-  },
-  function(fn) {
-    var obj = {};
-
-    Object.observe(obj, fn);
-
-    obj.a = 1;
   }
 ];
 
diff --git a/test/parallel/test-microtask-queue-integration.js b/test/parallel/test-microtask-queue-integration.js
index fe873d27c91447..2cc608d96aec3d 100644
--- a/test/parallel/test-microtask-queue-integration.js
+++ b/test/parallel/test-microtask-queue-integration.js
@@ -5,13 +5,6 @@ var assert = require('assert');
 var implementations = [
   function(fn) {
     Promise.resolve().then(fn);
-  },
-  function(fn) {
-    var obj = {};
-
-    Object.observe(obj, fn);
-
-    obj.a = 1;
   }
 ];