diff --git a/python-packages/sra_client/tox.ini b/python-packages/sra_client/tox.ini
index 69d59f4ffe..0d776c7b07 100644
--- a/python-packages/sra_client/tox.ini
+++ b/python-packages/sra_client/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27, py3
+envlist = py3
 
 [testenv]
 deps=-r{toxinidir}/requirements.txt