diff --git a/requirements_test.txt b/requirements_test.txt
index b8aeb08..6fc8730 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -3,7 +3,7 @@ black==23.1.0
 flake8==6.0.0
 isort==5.12.0
 mypy==1.0.0
-types-protobuf==4.21.0.5
+types-protobuf==4.21.0.6
 pytest>=6.2.4,<8
 pytest-asyncio>=0.15.1,<1
 mock>=4.0.3,<6