diff --git a/pyserverforindy/requirements.txt b/pyserverforindy/requirements.txt
index 4d5f839..6d1e24f 100644
--- a/pyserverforindy/requirements.txt
+++ b/pyserverforindy/requirements.txt
@@ -6,7 +6,7 @@ grpcio==1.53.2
 grpcio-tools==1.27.1
 more-itertools==8.2.0
 pluggy==0.13.1
-protobuf==3.18.3
+protobuf==6.33.5
 py==1.10.0
 pytest==5.3.5
 pytest-asyncio==0.10.0