diff --git a/newsfragments/576.internal.rst b/newsfragments/576.internal.rst
new file mode 100644
index 00000000..7d9191bd
--- /dev/null
+++ b/newsfragments/576.internal.rst
@@ -0,0 +1 @@
+Bumps dependency to ``protobuf>=6.30.1``.
diff --git a/setup.py b/setup.py
index 0e72960a..9196f8aa 100644
--- a/setup.py
+++ b/setup.py
@@ -57,7 +57,7 @@ install_requires = [
     "multiaddr>=0.0.9",
     "mypy-protobuf>=3.0.0",
     "noiseprotocol>=0.3.0",
-    "protobuf>=5.27.0",
+    "protobuf>=6.30.1",
     "pycryptodome>=3.9.2",
     "pymultihash>=0.8.2",
     "pynacl>=1.3.0",