diff --git a/pyproject.toml b/pyproject.toml
index 8fa00717..79b828fd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ authors = [
     {name = "MLCommons", email = "chakra@mlcommons.org"},
 ]
 dependencies = [
-    "protobuf==5.*",
+    "protobuf",
     "graphviz",
     "networkx",
     "pydot",