diff --git a/code/espurna/config/version.h b/code/espurna/config/version.h
index fc804cea..af6de58f 100644
--- a/code/espurna/config/version.h
+++ b/code/espurna/config/version.h
@@ -1,4 +1,4 @@
 #define APP_NAME                "ESPurna"
-#define APP_VERSION             "1.6.3"
+#define APP_VERSION             "1.6.4b"
 #define APP_AUTHOR              "xose.perez@gmail.com"
 #define APP_WEBSITE             "http://tinkerman.cat"