diff --git a/pyproject.toml b/pyproject.toml
index 7ed264f..11b30ed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "trace-client"
-version = "0.4.1"
+version = "0.4.2"
 description = "One call to report that a program was used, to a trace server. Standard library only, Python 3.8+."
 readme = "README.md"
 license = {text = "MIT"}
diff --git a/trace_client/trace_client.py b/trace_client/trace_client.py
index 6f08222..4b222c5 100644
--- a/trace_client/trace_client.py
+++ b/trace_client/trace_client.py
@@ -19,7 +19,7 @@
 import uuid
 from typing import Dict, Mapping, Optional, Union
 
-__version__ = "0.4.1"
+__version__ = "0.4.2"
 
 _LOG = logging.getLogger("trace")