diff --git a/RELEASE.md b/RELEASE.md
index 61245774..dabb023d 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -6,6 +6,8 @@
 
 ## Bug Fixes and Other Changes
 
+*   Relax dependency on Protobuf to include version 5.x
+
 ## Known Issues
 
 ## Breaking Changes
diff --git a/setup.py b/setup.py
index 4aa077f6..8677140e 100644
--- a/setup.py
+++ b/setup.py
@@ -182,7 +182,7 @@ def select_constraint(default, nightly=None, git_master=None):
         'joblib>=1.2.0',  # Dependency for multi-processing.
         'numpy>=1.22.0',
         'pandas>=1.0,<2',
-        'protobuf>=4.25.2,<5;python_version>="3.11"',
+        'protobuf>=4.25.2,<6;python_version>="3.11"',
         'protobuf>=3.20.3,<5;python_version<"3.11"',
         'pyarrow>=10,<11',
         'pyfarmhash>=0.2.2,<0.4',