diff --git a/requirements_for_test.txt b/requirements_for_test.txt
index ab5706f3b..0253db83a 100644
--- a/requirements_for_test.txt
+++ b/requirements_for_test.txt
@@ -1,7 +1,7 @@
 -r requirements.txt
 pycodestyle==2.3.1
 pytest==3.1.3
-pytest-mock==1.2
+pytest-mock==1.6.0
 pytest-cov==2.3.1
 pytest-xdist==1.14
 coveralls==1.1