diff --git a/requirements_test.txt b/requirements_test.txt
index fdb23a2..ac31b20 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -6,4 +6,4 @@ mypy==0.991
 types-protobuf==4.21.0.2
 pytest>=6.2.4,<8
 pytest-asyncio>=0.15.1,<1
-mock>=4.0.3,<5
+mock>=4.0.3,<6