diff --git a/test-requirements.txt b/test-requirements.txt
index 4946e38..5343671 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,3 +1,3 @@
 pytest-cov==2.5.1
 pytest==3.6.1
-pytest-mock==1.10.0
\ No newline at end of file
+pytest-mock==3.9.0
\ No newline at end of file