diff --git a/pc-bios/README b/pc-bios/README
index 0c3cfe0e19..f24f40f8c3 100644
--- a/pc-bios/README
+++ b/pc-bios/README
@@ -15,7 +15,7 @@
   firmware implementation. The goal is to implement a 100% IEEE
   1275-1994 (referred to as Open Firmware) compliant firmware.
   The included Sparc32 and Sparc64 images are built from SVN
-  revision 176.
+  revision 181.
 
 - The PXE roms come from Rom-o-Matic etherboot 5.4.2.
   pcnet32:pcnet32 -- [0x1022,0x2000]
diff --git a/pc-bios/openbios-sparc32 b/pc-bios/openbios-sparc32
index 101b3ce119..0772c53d52 100644
Binary files a/pc-bios/openbios-sparc32 and b/pc-bios/openbios-sparc32 differ
diff --git a/pc-bios/openbios-sparc64 b/pc-bios/openbios-sparc64
index 14b00734e2..6a4d06bf0b 100644
Binary files a/pc-bios/openbios-sparc64 and b/pc-bios/openbios-sparc64 differ