diff --git a/docker/kratos/oathkeeper/oathkeeper.yml b/docker/kratos/oathkeeper/oathkeeper.yml
index b5a99b30..aa816c48 100644
--- a/docker/kratos/oathkeeper/oathkeeper.yml
+++ b/docker/kratos/oathkeeper/oathkeeper.yml
@@ -94,6 +94,7 @@ mutators:
     config:
       issuer_url: http://oathkeeper:4455/
       jwks_url: file:///etc/config/oathkeeper/id_token.jwks.json
+      ttl: 4h
       claims: |
         {
           "session": {{ .Extra | toJson }}