diff --git a/colcon_core/task/python/build.py b/colcon_core/task/python/build.py
index 5dc89e44..442d5a62 100644
--- a/colcon_core/task/python/build.py
+++ b/colcon_core/task/python/build.py
@@ -8,7 +8,6 @@
 from pathlib import Path
 import shutil
 import sys
-from sys import executable
 
 from colcon_core.environment import create_environment_hooks
 from colcon_core.environment import create_environment_scripts
@@ -26,6 +25,12 @@
 
 logger = colcon_logger.getChild(__name__)
 
+_PYTHON_CMD = [
+    sys.executable,
+    '-W',
+    'ignore:setup.py install is deprecated',
+]
+
 
 def _get_install_scripts(path):
     setup_cfg_path = os.path.join(path, 'setup.cfg')
@@ -92,7 +97,7 @@ async def build(self, *, additional_hooks=None):  # noqa: D102
 
             # invoke `setup.py install` step with lots of arguments
             # to avoid placing any files in the source space
-            cmd = [executable, 'setup.py']
+            cmd = _PYTHON_CMD + ['setup.py']
             if 'egg_info' in available_commands:
                 # `setup.py egg_info` requires the --egg-base to exist
                 os.makedirs(args.build_base, exist_ok=True)
@@ -139,8 +144,8 @@ async def build(self, *, additional_hooks=None):  # noqa: D102
             try:
                 # --editable causes this to skip creating/editing the
                 # easy-install.pth file
-                cmd = [
-                    executable, 'setup.py',
+                cmd = _PYTHON_CMD + [
+                    'setup.py',
                     'develop',
                     '--editable',
                     '--build-directory',
@@ -181,7 +186,7 @@ async def build(self, *, additional_hooks=None):  # noqa: D102
 
     async def _get_available_commands(self, path, env):
         output = await check_output(
-            [executable, 'setup.py', '--help-commands'], cwd=path, env=env)
+            _PYTHON_CMD + ['setup.py', '--help-commands'], cwd=path, env=env)
         commands = set()
         for line in output.splitlines():
             if not line.startswith(b'  '):
@@ -208,8 +213,8 @@ async def _undo_develop(self, pkg, args, env):
             args.build_base, '%s.egg-info' % pkg.name.replace('-', '_'))
         setup_py_build_space = os.path.join(args.build_base, 'setup.py')
         if os.path.exists(egg_info) and os.path.islink(setup_py_build_space):
-            cmd = [
-                executable, 'setup.py',
+            cmd = _PYTHON_CMD + [
+                'setup.py',
                 'develop',
                 '--uninstall', '--editable',
                 '--build-directory', os.path.join(args.build_base, 'build')