diff --git a/jupyter/base/values/values.yaml b/jupyter/base/values/values.yaml
index 8acd5b8..4161e94 100644
--- a/jupyter/base/values/values.yaml
+++ b/jupyter/base/values/values.yaml
@@ -17,6 +17,7 @@ hub:
       from oauthenticator.generic import GenericOAuthenticator
 
       def get_nextcloud_access_token(refresh_token):
+        debug = 'NEXTCLOUD_DEBUG_OAUTH' in os.environ
         client_id = os.environ['NEXTCLOUD_CLIENT_ID']
         client_secret = os.environ['NEXTCLOUD_CLIENT_SECRET']
 
@@ -30,6 +31,8 @@ hub:
           'client_secret': client_secret
         }
         response = requests.post(url, data=data)
+        if debug:
+          print(response.text)
         return response.json()
 
       def post_auth_hook(authenticator, handler, authentication):
@@ -103,7 +106,7 @@ hub:
       c.NextcloudOAuthenticator.allow_all = True
       c.NextcloudOAuthenticator.refresh_pre_spawn = True
       c.NextcloudOAuthenticator.enable_auth_state = True
-      c.NextcloudOAuthenticator.auth_refresh_age = 3600
+      c.NextcloudOAuthenticator.auth_refresh_age = 60
       c.NextcloudOAuthenticator.post_auth_hook = post_auth_hook
 
   extraEnv: