diff --git a/tests/python2-libraries/requirements.txt b/tests/python2-libraries/requirements.txt
index f0596d67..a4b14724 100644
--- a/tests/python2-libraries/requirements.txt
+++ b/tests/python2-libraries/requirements.txt
@@ -122,7 +122,7 @@ pika==0.12.0
 pillow==9.3.0
 pip==18.0
 prettytable==0.7.2
-protobuf==3.6.1
+protobuf==4.25.8
 psutil==5.4.7
 psycopg2==2.7.5
 py==1.5.4