diff --git a/mock/consumer/requirements.txt b/mock/consumer/requirements.txt
index 2e1dee9..ef656aa 100644
--- a/mock/consumer/requirements.txt
+++ b/mock/consumer/requirements.txt
@@ -1,5 +1,5 @@
 kafka-python==2.0.2
 pkg-resources==0.0.0
 pprint==0.1
-protobuf==3.14.0
+protobuf==3.18.3
 six==1.15.0