diff --git a/requirements.txt b/requirements.txt
index c769961..c73ac3d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,5 @@ attrs==19.3.0
 mypy==0.780
 mypy-protobuf==1.20
 parsimonious==0.8.1
-protobuf==4.22.0
+protobuf==5.29.6
 typing==3.7.4.1