diff --git a/tox.ini b/tox.ini
index 6b0f152..a3e12f0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,5 @@
 [tox]
 envlist = py34,py35,py36,py37
-requires = coverage<=4.5.4
 
 [testenv]
 deps=