diff --git a/tox.ini b/tox.ini
index 252670966..8e2cb2f39 100644
--- a/tox.ini
+++ b/tox.ini
@@ -65,7 +65,7 @@ allowlist_externals =
 extras =
 commands_pre =
     bash -c "pip freeze -q | grep 'asdf @' > {env_tmp_dir}/requirements.txt"
-    git clone https://github.com/asdf-format/asdf-standard.git
+    git clone https://github.com/braingram/asdf-standard.git -b symlink_resources
     pip install -e asdf-standard[test]
     pip install -r {env_tmp_dir}/requirements.txt
     pip freeze