diff --git a/requirements.txt b/requirements.txt
index 2d2aaad..6235aae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,5 @@
 # process, which may cause wedges in the gate later.
 
 eventlet!=0.18.0,>=0.17.4 # MIT
+python-swiftclient>=2.2.0  # Apache-2.0
 six>=1.9.0 # MIT