diff --git a/Gemfile b/Gemfile
index 4be359693280476c85f8dd2b384d9d9bea658a3f..d9f089f7abb473ca54f59a9392dbcfc65d2c92ce 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,6 +16,7 @@ gem "horo",  ">= 1.0.2"
 # for perf tests
 gem "faker"
 gem "rbench"
+gem "addressable"
 
 # AS
 gem "memcache-client", ">= 1.8.5"