diff --git a/requirements.txt b/requirements.txt
index acb7041..2c9e296 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ isort==4.3.4
 lazy-object-proxy==1.3.1
 mccabe==0.6.1
 pkginfo==1.4.2
-protobuf==3.6.0
+protobuf==3.18.3
 pylint==2.0.0.dev2
 requests==2.19.1
 requests-toolbelt==0.8.0