diff --git a/web/src/main/filters/prod.properties b/web/src/main/filters/prod.properties
index 92c169a10b..59de892b00 100644
--- a/web/src/main/filters/prod.properties
+++ b/web/src/main/filters/prod.properties
@@ -41,7 +41,7 @@ ignoreFailingProcessor=true
 xsl_TransformerFactoryImpl=de.fzi.dbs.xml.transform.CachingTransformerFactory
 
 # goes in web.xml session-timeout tag.  It is in minutes
-sessionTimeout=35
+sessionTimeout=1440
 
 # set to true to have cookies flagged as Secure in production (requires HTTPS)
 cookieSecureFlag=false