diff --git a/setup.py b/setup.py
index ee1354d4e1..f5ede2682a 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<=26.1.1',
         'requests',
         'rich',