diff --git a/setup.py b/setup.py
index 066f68a..f0dfdc0 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
     "packaging==24.1",
     "pandas==2.2.2",
     "pluggy==1.5.0",
-    "protobuf==5.27.3",
+    "protobuf==5.28.0",
     "pyarrow==17.0.0",
     "pytest==8.3.2",
     "python-dateutil>=2.8.1",