diff --git a/dev_requirements.txt b/dev_requirements.txt
index b42d0322..03298f4f 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -1,8 +1,8 @@
 pytest>=3.2.0
-mock>=2.0.0
+mock>=5.10
 responses>=0.9.0
 pandas>=0.24.0
 black;python_version >= '3.6'
 aioresponses>=0.6.2
 pytest-asyncio>=0.12.0
-asgiref>=3.2.3
\ No newline at end of file
+asgiref>=3.2.3