diff --git a/setup.py b/setup.py
index b19ffb9c..5e7e88cd 100644
--- a/setup.py
+++ b/setup.py
@@ -11,6 +11,7 @@
     "tqdm",
     "stevedore>1.20.0",
     "setuptools",
+    "packaging",
 ]
 
 extras_require = {