1 files changed, 1 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index cda0ebbcb..0d78de1df 100755
--- a/setup.py
+++ b/setup.py
@@ -255,6 +255,7 @@ setup(name='BuildStream',
               os.path.join('buildstream', 'data', 'bst')
           ])
       ],
+      python_requires='>=3.5',
       install_requires=[
           'setuptools',
           'psutil',