diff --git a/requirements.txt b/requirements.txt
index 94744e3..7aa04a0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ packaging==24.1
 pandas==2.2.2
 pdoc3==0.11.1
 pillow==10.4.0
-protobuf==4.25.4
+protobuf==5.28.1
 Pygments==2.18.0
 pyparsing==3.1.4
 python-dateutil==2.9.0.post0