diff --git a/parm/config/gfs/config.resources b/parm/config/gfs/config.resources
index 24b2e802a1..0479543ebc 100644
--- a/parm/config/gfs/config.resources
+++ b/parm/config/gfs/config.resources
@@ -55,12 +55,12 @@ case ${machine} in
   "ORION")
               max_tasks_per_node=40
               # shellcheck disable=SC2034
-              mem_node_max="192GB"
+              mem_node_max="180GB"
     ;;
   "HERCULES")
               max_tasks_per_node=80
               # shellcheck disable=SC2034
-              mem_node_max="512GB"
+              mem_node_max="500GB"
     ;;
   "JET")
     case ${PARTITION_BATCH} in