diff --git a/tox.ini b/tox.ini
index f204def..772027b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,7 +9,7 @@ commands =
     coverage report --show-missing
 deps =
     jsonschema==3.0.2
-    coverage==4.5.4
+    coverage==5.0.2
 
 [testenv:py36-flake8]
 commands = flake8 .