diff --git a/requirements.txt b/requirements.txt
index cdc8c895c..f04d4bca5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,3 +12,4 @@ warlock<2,>=1.0.1
 six>=1.9.0
 oslo.utils>=1.6.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
+repoze.lru