diff --git a/tests/requirements.txt b/tests/requirements.txt
index f2204ee..7340ca5 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -2,4 +2,4 @@ coverage
 codecov>=2.1
 pytest>=3.0.5
 pytest-cov
-protobuf<=4.24.2
+protobuf<=4.24.3