diff --git a/Makefile b/Makefile
index 0689d1c..052fd35 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # LuPI2 Makefile
 
 # Default compiler settings.
-PREFIX?=x86_64-linux-musl
+PREFIX?=powerpc-linux-musl
 
 CC = $(PREFIX)-gcc
 CFLAGS?=-O2 -std=c99 -fdata-sections -ffunction-sections -pthread
@@ -67,10 +67,10 @@ web: iso bin/web
 
 
 ####
-ISOKERNEL=linux-4.5.2
+ISOKERNEL=linux-5.12.1
 
 dependencies/$(ISOKERNEL).tar.xz:
-	cd dependencies && wget https://cdn.kernel.org/pub/linux/kernel/v4.x/$(ISOKERNEL).tar.xz
+	cd dependencies && wget https://cdn.kernel.org/pub/linux/kernel/v5.x/$(ISOKERNEL).tar.xz
 
 dependencies/$(ISOKERNEL)/arch/x86/boot/bzImage: $(BUILD)lupi.cpio dependencies/$(ISOKERNEL).tar.xz
 	rm -rf dependencies/$(ISOKERNEL)/