diff --git a/requirements.txt b/requirements.txt
index dd60335..fa6e20c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ more-itertools==5.0.0
 packaging==19.1
 pathlib2==2.3.4
 pluggy==0.13.0
-protobuf==3.20.3
+protobuf==4.25.8
 py==1.10.0
 pyparsing==2.4.2
 pytest==5.1.2