diff --git a/cache.go b/cache.go
index a6bc326..83f155a 100644
--- a/cache.go
+++ b/cache.go
@@ -11,6 +11,8 @@ import (
 	"time"
 )
 
+const Version = "1.0"
+
 type Item struct {
 	Object     interface{}
 	Expiration *time.Time