Update release number for 1.4.0 release candidate 1
diff --git a/src/include/lwip/init.h b/src/include/lwip/init.h
index 94897d2..1c54d3e 100644
--- a/src/include/lwip/init.h
+++ b/src/include/lwip/init.h
@@ -47,7 +47,7 @@
/** For release candidates, this is set to 1..254
* For official releases, this is set to 255 (LWIP_RC_RELEASE)
* For development versions (CVS), this is set to 0 (LWIP_RC_DEVELOPMENT) */
-#define LWIP_VERSION_RC 0U
+#define LWIP_VERSION_RC 1U
/** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */
#define LWIP_RC_RELEASE 255U
