diff --git a/requirements.txt b/requirements.txt
index 8bc6eb8..8dc8f40 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 confluent-kafka==1.3.0
-protobuf==3.15.0
+protobuf==3.18.3
 six==1.14.0