diff --git a/ext/testlib/configuration.py b/ext/testlib/configuration.py
index 95800deb46..d0fca7451a 100644
--- a/ext/testlib/configuration.py
+++ b/ext/testlib/configuration.py
@@ -213,7 +213,7 @@ def define_defaults(defaults):
                                                       os.pardir,
                                                       os.pardir))
     defaults.result_path = os.path.join(os.getcwd(), 'testing-results')
-    defaults.resource_url = 'http://dist.gem5.org/dist/develop'
+    defaults.resource_url = 'http://dist.gem5.org/dist/v21-2'
     defaults.resource_path = os.path.abspath(os.path.join(defaults.base_dir,
                                             'tests',
                                             'gem5',