diff --git a/src/common/header/common.h b/src/common/header/common.h
index 53d5275a..e7d52f86 100644
--- a/src/common/header/common.h
+++ b/src/common/header/common.h
@@ -33,7 +33,7 @@
 #include "crc.h"
 
 /* Should have 4 characters. */
-#define VERSION "4.90"
+#define VERSION "5.00"
 
 #define BASEDIRNAME "baseq2"