diff --git a/esp3d/config.h b/esp3d/config.h
index 50b7ae75..20f62ce0 100644
--- a/esp3d/config.h
+++ b/esp3d/config.h
@@ -19,7 +19,7 @@
 */
 
 //version and sources location
-#define FW_VERSION "2.1.1.b8"
+#define FW_VERSION "2.1.1.b9"
 #define REPOSITORY "https://github.com/luc-github/ESP3D"
 
 //Customize ESP3D ////////////////////////////////////////////////////////////////////////