diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index 8415473..09d98a1 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -28,7 +28,7 @@
         user: 'keystone'
       tokens:
         engine: cache
-        expiration: 86400
+        expiration: 43200
         location: /etc/keystone/fernet-keys/
       cache:
         engine: memcached