diff --git a/scripts/requirements.txt b/scripts/requirements.txt
index 83cc79b..6a974fa 100644
--- a/scripts/requirements.txt
+++ b/scripts/requirements.txt
@@ -32,7 +32,7 @@ mccabe==0.6.1
 oauth2client==3.0.0
 pep8==1.7.1
 ply==3.8
-protobuf==3.5.2
+protobuf==3.18.3
 pyasn1==0.4.2
 pyasn1-modules==0.2.1
 pycryptodome==3.4.3