diff --git a/start-6001-to-16000m.sh b/start-6001-to-16000m.sh
index c9e6bf6..3129b41 100644
--- a/start-6001-to-16000m.sh
+++ b/start-6001-to-16000m.sh
@@ -33,7 +33,7 @@ fi
 # Limits Java JVM stack size and maximum heap usage.
 # Comment out for bigger systems, e.g. non-routers
 # or when API documentation is enabled
-JVM_MEMORY_ARGS="-Xss1250k -Xmx4700m"
+JVM_MEMORY_ARGS="-Xss1550k -Xmx4500m"
 
 # Although java.net.preferIPv4Stack is supposed to be false
 # by default in Java 11, on some platforms (e.g. FreeBSD 12),