diff --git a/tox.ini b/tox.ini
index d8d2e93..9487c6e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,7 @@ envlist = py36,py37,py38,pypy3,flake8
 [testenv]
 deps =
     pytest>=3.0
-    tspwplib@git+https://github.com/PatrickOHara/tspwplib.git#egg=tspwplib>=0.0.0
+    tspwplib@git+https://github.com/PatrickOHara/tspwplib.git#egg=tspwplib>=0.1.0
 commands = pytest {posargs:tests}
 
 [testenv:flake8]