diff --git a/setup.py b/setup.py
index 8b0476541..581178e6b 100755
--- a/setup.py
+++ b/setup.py
@@ -80,7 +80,7 @@
     install_requires=['setuptools >= 36'],
     extras_require={
         'testing': [
-            'coverage<4.0',
+            'coverage<5.0',
             'pyyaml',
             'pytidylib',
         ],