diff --git a/gp2040ce_bintools/__init__.py b/gp2040ce_bintools/__init__.py
index df5cd18..1a20da0 100644
--- a/gp2040ce_bintools/__init__.py
+++ b/gp2040ce_bintools/__init__.py
@@ -33,7 +33,8 @@ logger = logging.getLogger(__name__)
 
 # parse flags that are common to many tools (e.g. adding paths for finding .proto files)
 core_parser = argparse.ArgumentParser(add_help=False)
-core_parser.add_argument('-v', '--version', action='version', version=f"%(prog)s {__version__}",
+core_parser.add_argument('-v', '--version', action='version',
+                         version=f"gp2040ce-binary-tools {__version__} (Python {sys.version})",
                          help="show version information and exit")
 core_parser.add_argument('-d', '--debug', action='store_true', help="enable debug logging")
 core_parser.add_argument('-P', '--proto-files-path', type=pathlib.Path, default=list(), action='append',
diff --git a/tests/test_commands.py b/tests/test_commands.py
index 6671ec4..f177266 100644
--- a/tests/test_commands.py
+++ b/tests/test_commands.py
@@ -30,7 +30,8 @@ def with_pb2s(test, *args, **kwargs):
 def test_version_flag():
     """Test that tools report the version."""
     result = run(['visualize-config', '-v'], capture_output=True, encoding='utf8')
-    assert __version__ in result.stdout
+    assert f'gp2040ce-binary-tools {__version__}' in result.stdout
+    assert 'Python 3' in result.stdout
 
 
 def test_help_flag():