diff --git a/test-requirements.txt b/test-requirements.txt
index 733bff1cd..5b5b3764a 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,7 +5,7 @@
 
 bandit>=1.1.0 # Apache-2.0
 doc8 # Apache-2.0
-coverage>=3.6 # Apache-2.0
+coverage>=4.0 # Apache-2.0
 mock>=2.0 # BSD
 fixtures>=3.0.0 # Apache-2.0/BSD
 hacking<0.12,>=0.11.0 # Apache-2.0