diff --git a/src/hydro_properties.c b/src/hydro_properties.c
index 818c1b6349192ed73b28cd4c3ae771f89a3754cd..c9b0e5ff7f26aa433a9e3492a4282f94cf2f6624 100644
--- a/src/hydro_properties.c
+++ b/src/hydro_properties.c
@@ -33,7 +33,7 @@
 #include "kernel_hydro.h"
 
 #define hydro_props_default_max_iterations 30
-#define hydro_props_default_volume_change 2.0f
+#define hydro_props_default_volume_change 1.4f
 #define hydro_props_default_h_max FLT_MAX
 
 void hydro_props_init(struct hydro_props *p,