diff --git a/setup.py b/setup.py
index 5eaf01b..2692734 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 test_requires = [
     "nox==2019.11.9",
     "pluggy>=0.7",
-    "mock==2.0.0",
+    "mock==4.0.2",
     "unittest-xml-reporting==2.5.2",
     "codacy-coverage==1.3.11",
 ]