diff --git a/pyproject.toml b/pyproject.toml
index 92dcb3c5da..a08b7d5d75 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ dependencies = [
     "importlib-metadata >=4.0",
     "numpy",
     "packaging",
-    "protobuf<4",
+    "protobuf",
     "psutil",
     "setuptools",
     "tqdm",