diff --git a/erldistpy/__init__.py b/erldistpy/__init__.py
index 17a408c..8c3d9fe 100644
--- a/erldistpy/__init__.py
+++ b/erldistpy/__init__.py
@@ -1,6 +1,6 @@
 """erldistpy — native Python client for our Erlang distribution protocol."""
 
-__version__ = "0.1.1"
+__version__ = "0.1.2"
 
 from erldistpy.channel import Channel, ChannelError, IncomingMessage
 from erldistpy.epmd import EpmdError, EpmdInfo, lookup
diff --git a/pyproject.toml b/pyproject.toml
index 42c1932..28bc421 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,10 +1,15 @@
 [build-system]
-requires = ["setuptools>=68", "wheel"]
+# setuptools 77+ emits Metadata-Version 2.4 (PEP 639 license-expression).
+# twine <6 caps at metadata 2.3 and rejects 2.4 wheels with "Metadata is
+# missing required fields: Name, Version." Until we migrate the build
+# runner to Trusted Publishing OIDC (which lets us use twine 6+), keep
+# setuptools below 77 so the wheel stays metadata 2.3.
+requires = ["setuptools>=68,<77", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]
 name = "erldistpy"
-version = "0.1.1"
+version = "0.1.2"
 description = "Native Python client for Erlang distribution protocol — EPMD + v6 handshake + gen_server call(), no asyncio."
 readme = { file = "README.md", content-type = "text/markdown" }
 requires-python = ">=3.10"