diff --git a/test-requirements.txt b/test-requirements.txt
index a2619fa6..44641396 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,7 +1,7 @@
 configparser==4.0.2
 flake8==3.7.9
 mccabe==0.6.1
-mock>=3.0.5, <4.0.2
+mock>=3.0.5, <4.0.3
 pycodestyle==2.5.0
 pyfakefs>=3.6, <4.1
 pyflakes==2.1.1