session timeout for horizon
diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index 4ec6fc8..f49b9d6 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -13,6 +13,7 @@
       enabled: true
       version: ${_param:horizon_version}
       secret_key: ${_param:horizon_secret_key}
+      session_timeout: 43200
       bind:
         address: ${_param:single_address}
         port: 80