diff --git a/lib/runner.js b/lib/runner.js
index 32f5a3ca..94895471 100755
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -52,7 +52,7 @@ internals.defaults = {
     rejections: false,
     reporter: 'console',
     shuffle: false,
-    seed: Math.random(),
+    seed: Math.floor(Math.random() * 1000),
 
     // schedule: true,
     threshold: 0,