diff --git a/tools/mkimage-iso-bios/Dockerfile b/tools/mkimage-iso-bios/Dockerfile
index 1c98f2caa..11f826d95 100644
--- a/tools/mkimage-iso-bios/Dockerfile
+++ b/tools/mkimage-iso-bios/Dockerfile
@@ -1,4 +1,4 @@
-FROM linuxkit/alpine:34af9cb1990debd17fae6d4198c62ce3910d9908
+FROM linuxkit/alpine:87a0cd10449d72f374f950004467737dbf440630
 
 RUN \
   apk update && apk upgrade && \
diff --git a/tools/mkimage-iso-bios/Makefile b/tools/mkimage-iso-bios/Makefile
index ff6f47e3c..9a920db2c 100644
--- a/tools/mkimage-iso-bios/Makefile
+++ b/tools/mkimage-iso-bios/Makefile
@@ -1,4 +1,5 @@
 IMAGE=mkimage-iso-bios
 DEPS=make-iso
+ARCHES=x86_64
 
 include ../../pkg/package.mk
diff --git a/tools/mkimage-iso-efi/Dockerfile b/tools/mkimage-iso-efi/Dockerfile
index 034e666e2..4fd4e6cb2 100644
--- a/tools/mkimage-iso-efi/Dockerfile
+++ b/tools/mkimage-iso-efi/Dockerfile
@@ -1,4 +1,4 @@
-FROM linuxkit/alpine:34af9cb1990debd17fae6d4198c62ce3910d9908
+FROM linuxkit/alpine:87a0cd10449d72f374f950004467737dbf440630
 
 RUN \
   apk update && apk upgrade && \
diff --git a/tools/qemu/Dockerfile b/tools/qemu/Dockerfile
index 42e745873..201f34ea4 100644
--- a/tools/qemu/Dockerfile
+++ b/tools/qemu/Dockerfile
@@ -1,4 +1,4 @@
-FROM linuxkit/alpine:77c8dfc5860012c869a19d7a2c68e701469692c8 AS mirror
+FROM linuxkit/alpine:87a0cd10449d72f374f950004467737dbf440630 AS mirror
 RUN mkdir -p /out/etc/apk && cp -r /etc/apk/* /out/etc/apk/
 RUN apk add --no-cache --initdb -p /out \
     alpine-baselayout \