diff --git a/pc-bios/README b/pc-bios/README
index a843e1e8b1..99e15a737b 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-20171214.
+  built from git tag qemu-slof-20180621.
 
 - 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 d46c83efb7..4e0e33f829 100644
Binary files a/pc-bios/slof.bin and b/pc-bios/slof.bin differ
diff --git a/roms/SLOF b/roms/SLOF
index 2317427ce7..7d37babcfa 160000
--- a/roms/SLOF
+++ b/roms/SLOF
@@ -1 +1 @@
-Subproject commit 2317427ce76006723f7ae103a6998ab41dd79c68
+Subproject commit 7d37babcfa48a6eb08e726a8d13b745cb2eebe1c