diff --git a/test_requirements.txt b/test_requirements.txt
index 65a2fa7..30b3918 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -1,5 +1,5 @@
 pytest
 pytest-cov
-pytest-mock==1.1
+pytest-mock==1.6.0
 pytest-catchlog
 freezegun