diff --git a/requirements.txt b/requirements.txt
index 7fbac3fe4..4b930fbe5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,6 +7,7 @@ aodhclient>=0.9.0 # Apache-2.0
 Babel!=2.4.0,>=2.3.4 # BSD
 croniter>=0.3.4 # MIT License
 cachetools>=2.0.0 # MIT License
+dogpile.cache>=0.6.2,<0.7.0 # BSD
 eventlet!=0.20.1,>=0.20.0 # MIT
 gnocchiclient>=3.3.1 # Apache-2.0
 Jinja2>=2.10 # BSD License (3 clause)