1 files changed, 3 insertions, 0 deletions
diff --git a/setup.py b/setup.py
index bac4e29d..cc0e4684 100755
--- a/setup.py
+++ b/setup.py
@@ -198,6 +198,9 @@ setup_params = dict(
         Topic :: System :: Systems Administration
         Topic :: Utilities
         """).strip().splitlines(),
+    install_requires=[
+        "packaging>=14.2,<15.0.dev0",
+    ],
     extras_require={
         "ssl:sys_platform=='win32'": "wincertstore==0.2",
         "certs": "certifi==1.0.1",