diff --git a/VERSION b/VERSION
index d3827e7..e6adf3f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0
+0.4
\ No newline at end of file
diff --git a/src/ecoprimer.c b/src/ecoprimer.c
index f64100f..628e7c4 100644
--- a/src/ecoprimer.c
+++ b/src/ecoprimer.c
@@ -20,7 +20,7 @@
 #include"libthermo/thermostats.h"
 
 
-#define VERSION "0.3"
+#define VERSION "0.4"
   /* TR: by default, statistics are made on species level*/
 #define DEFAULTTAXONRANK "species"