diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index c3b08d3330e34169c4d1e5be68b35fc9ad5510c6..82ec6a3c050095a018e4594fe28dec4d5408e49e 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -47,7 +47,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20090422
+#define ACPI_CA_VERSION                 0x20090521
 
 #include "actypes.h"
 #include "actbl.h"