diff --git a/requirements.txt b/requirements.txt
index 1af4cb0..487f783 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ optree==0.11.0
 packaging==23.2
 pandas==2.2.2
 pluggy==1.3.0
-protobuf==4.25.3
+protobuf==5.27.2
 py2puml==0.9.1
 pygame==2.5.1
 Pygments==2.18.0