diff --git a/setup.py b/setup.py
index 6c492d7..bf81ee6 100644
--- a/setup.py
+++ b/setup.py
@@ -49,7 +49,7 @@
             "ruamel.yaml>=0.18.5",
             "defusedxml>=0.7.1",
             "iso3166>=2.1.1",
-            "protobuf==4.24.4",
+            "protobuf==4.25.8",
             "open-simulation-interface @ git+https://github.com/OpenSimulationInterface/open-simulation-interface.git@v3.7.0-rc1",
         ],
         entry_points={