diff --git a/kernel/sys/version.c b/kernel/sys/version.c
index 0d544bf7..239f84d2 100644
--- a/kernel/sys/version.c
+++ b/kernel/sys/version.c
@@ -18,7 +18,7 @@ char * __kernel_version_format = "%d.%d.%d-%s";
 /* Version numbers X.Y.Z */
 int    __kernel_version_major = 0;
 int    __kernel_version_minor = 99;
-int    __kernel_version_lower = 20;
+int    __kernel_version_lower = 21;
 
 /* Kernel build suffix, which doesn't necessarily
  * mean anything, but can be used to distinguish