diff --git a/pc-bios/README b/pc-bios/README
index 25fc6ce..a843e1e 100644
--- a/pc-bios/README
+++ b/pc-bios/README
@@ -17,7 +17,7 @@
 - SLOF (Slimline Open Firmware) is a free IEEE 1275 Open Firmware
   implementation for certain IBM POWER hardware.  The sources are at
   https://github.com/aik/SLOF, and the image currently in qemu is
-  built from git tag qemu-slof-20170724.
+  built from git tag qemu-slof-20171214.
 
 - sgabios (the Serial Graphics Adapter option ROM) provides a means for
   legacy x86 software to communicate with an attached serial console as
diff --git a/pc-bios/slof.bin b/pc-bios/slof.bin
index 6bb48d4..d46c83e 100644
--- a/pc-bios/slof.bin
+++ b/pc-bios/slof.bin
Binary files differ
diff --git a/roms/SLOF b/roms/SLOF
index 89f519f..fa98132 160000
--- a/roms/SLOF
+++ b/roms/SLOF
@@ -1 +1 @@
-Subproject commit 89f519f09bf850918b60526e50409afb663418aa
+Subproject commit fa981320a1e0968d6fc1b8de319723ff8212b337