diff --git a/test-requirements.txt b/test-requirements.txt
index e91a96f6a..75a2eeedf 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,7 +5,7 @@
 hacking<0.11,>=0.10.0
 flake8-docstrings==0.2.1.post1 # MIT
 
-coverage>=3.6 # Apache-2.0
+coverage>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 keyring>=5.5.1 # MIT/PSF
 lxml>=2.3 # BSD