diff --git a/templates/realm.template b/templates/realm.template
index 3d4e6b7..5ac61d7 100644
--- a/templates/realm.template
+++ b/templates/realm.template
@@ -5,7 +5,7 @@
   "notBefore": 0,
   "revokeRefreshToken": false,
   "refreshTokenMaxReuse": 0,
-  "accessTokenLifespan": 300,
+  "accessTokenLifespan": 900,
   "accessTokenLifespanForImplicitFlow": 900,
   "ssoSessionIdleTimeout": 1800,
   "ssoSessionMaxLifespan": 36000,