diff --git a/requirements.txt b/requirements.txt
index 9c29dc8..43c1101 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 Mako==1.0.6
-protobuf==3.2.0
+protobuf==3.18.3
 mock==2.0.0
 astroid==1.5.3
 isort==4.2.15