diff --git a/ksqldb/protobuf-without-schema-registry/proto-python-client/requirements.txt b/ksqldb/protobuf-without-schema-registry/proto-python-client/requirements.txt
index be3985ba1f..8159ff7aa1 100644
--- a/ksqldb/protobuf-without-schema-registry/proto-python-client/requirements.txt
+++ b/ksqldb/protobuf-without-schema-registry/proto-python-client/requirements.txt
@@ -1,3 +1,3 @@
 confluent-kafka>=1.4.2
-protobuf==4.24.4
+protobuf==4.25.8
 six==1.14.0