diff --git a/tox.ini b/tox.ini
index e25b80e..16b4eda 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,7 +13,7 @@ setenv = VIRTUAL_ENV={envdir}
          NOSE_COVER_ERASE=1
 deps =
     -r{toxinidir}/test-requirements.txt
-    https://tarballs.openstack.org/swift/swift-2.10.0.tar.gz
+    https://tarballs.openstack.org/swift/swift-2.15.1.tar.gz
 commands = nosetests {posargs:test/unit}
 
 [testenv:cover]