diff --git a/lib/cmd/test.js b/lib/cmd/test.js
index d601ee56..dd04ef6a 100644
--- a/lib/cmd/test.js
+++ b/lib/cmd/test.js
@@ -94,6 +94,7 @@ class TestCommand extends Command {
     }
     // expand glob and skip node_modules and fixtures
     files = globby.sync(files.concat('!test/**/{fixtures, node_modules}/**/*.test.js'));
+    files.sort();
 
     // auto add setup file as the first test file
     const setupFile = path.join(process.cwd(), 'test/.setup.js');