diff --git a/requirements.txt b/requirements.txt
index 85cddf7..840cfbd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ pbr==5.11.0
 praw==7.6.1
 prawcore==2.3.0
 proto-plus==1.22.1
-protobuf==3.20.3
+protobuf==4.21.12
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycryptodome==3.16.0