X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/a4fa040579473b598a532ee38173b1a28c6b1694..d0584563200b0fe69e508b2fc5b0ddb223ebccc0:/sdk/cwl/setup.py

diff --git a/sdk/cwl/setup.py b/sdk/cwl/setup.py
index 22c49a01bf..20a601802d 100644
--- a/sdk/cwl/setup.py
+++ b/sdk/cwl/setup.py
@@ -39,9 +39,11 @@ setup(name='arvados-cwl-runner',
           'ruamel.yaml >=0.15.54, <=0.15.77',
           'arvados-python-client>=1.3.0.20190205182514',
           'setuptools',
-          'ciso8601 >=1.0.6, <2.0.0',
-          'subprocess32>=3.5.1',
+          'ciso8601 >= 2.0.0',
       ],
+      extras_require={
+          ':os.name=="posix" and python_version<"3"': ['subprocess32 >= 3.5.1'],
+      },
       data_files=[
           ('share/doc/arvados-cwl-runner', ['LICENSE-2.0.txt', 'README.rst']),
       ],