diff --git a/tests/conftest.py b/tests/conftest.py
index e493937..19e4710 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -9,7 +9,7 @@
 from pytest_virtualenv import VirtualEnv
 import yaml
 
-NODE_PYTHON_DEFAULT_VERSION = "3.7"
+NODE_PYTHON_DEFAULT_VERSION = "3.6"
 
 with open("galaxy.yml", encoding="utf-8") as f:
     GALAXY_YML = yaml.safe_load(f)