diff --git a/setup.py b/setup.py
index b1dea5bcfd..8800f4972d 100644
--- a/setup.py
+++ b/setup.py
@@ -158,7 +158,7 @@ def run(self):
         'jupyterlab',
         'numpy',
         'pandas',
-        'protobuf>=4.22,<5.0.0dev',
+        'protobuf>=4.22,<6.0.0',
         'pyzmq<=26.2.0',
         'requests>=2.32.0',
         'rich',