diff --git a/tools/containerd-dev/Dockerfile b/tools/containerd-dev/Dockerfile
index effc50992..6e1de319f 100644
--- a/tools/containerd-dev/Dockerfile
+++ b/tools/containerd-dev/Dockerfile
@@ -1,4 +1,4 @@
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 as builder
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 as builder
 
 
 # checkout and compile containerd
diff --git a/tools/go-compile/Dockerfile b/tools/go-compile/Dockerfile
index 507be50d5..9103c761e 100644
--- a/tools/go-compile/Dockerfile
+++ b/tools/go-compile/Dockerfile
@@ -1,4 +1,4 @@
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 AS mirror
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 AS mirror
 
 RUN mkdir -p /out/etc/apk && cp -r /etc/apk/* /out/etc/apk/
 RUN apk add --no-cache --initdb -p /out \
diff --git a/tools/mkimage-iso-bios/Dockerfile b/tools/mkimage-iso-bios/Dockerfile
index fbdd9de00..3c56e2c0a 100644
--- a/tools/mkimage-iso-bios/Dockerfile
+++ b/tools/mkimage-iso-bios/Dockerfile
@@ -1,4 +1,4 @@
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 as mirror
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 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 \
diff --git a/tools/mkimage-iso-efi-initrd/Dockerfile b/tools/mkimage-iso-efi-initrd/Dockerfile
index 5598efcfd..80d578559 100644
--- a/tools/mkimage-iso-efi-initrd/Dockerfile
+++ b/tools/mkimage-iso-efi-initrd/Dockerfile
@@ -1,6 +1,6 @@
 FROM linuxkit/grub:292deb743d85eb79cbd5b163841db8ccd2500677 AS grub
 
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 AS mirror
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 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 \
diff --git a/tools/mkimage-iso-efi/Dockerfile b/tools/mkimage-iso-efi/Dockerfile
index 41aca2405..533ae050f 100644
--- a/tools/mkimage-iso-efi/Dockerfile
+++ b/tools/mkimage-iso-efi/Dockerfile
@@ -1,6 +1,6 @@
 FROM linuxkit/grub:292deb743d85eb79cbd5b163841db8ccd2500677 AS grub
 
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 AS mirror
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 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 \
diff --git a/tools/mkimage-iso/Dockerfile b/tools/mkimage-iso/Dockerfile
index 7c96e88aa..8083afad6 100644
--- a/tools/mkimage-iso/Dockerfile
+++ b/tools/mkimage-iso/Dockerfile
@@ -1,4 +1,4 @@
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 AS mirror
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 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 \
diff --git a/tools/mkimage-qcow2-efi/Dockerfile b/tools/mkimage-qcow2-efi/Dockerfile
index 26d4c03ef..6b309d717 100644
--- a/tools/mkimage-qcow2-efi/Dockerfile
+++ b/tools/mkimage-qcow2-efi/Dockerfile
@@ -1,6 +1,6 @@
 FROM linuxkit/grub:292deb743d85eb79cbd5b163841db8ccd2500677 AS grub
 
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 AS mirror
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 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 \
diff --git a/tools/mkimage-raw-bios/Dockerfile b/tools/mkimage-raw-bios/Dockerfile
index 25438b664..1aa91b9d5 100644
--- a/tools/mkimage-raw-bios/Dockerfile
+++ b/tools/mkimage-raw-bios/Dockerfile
@@ -1,4 +1,4 @@
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 AS mirror
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 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 \
diff --git a/tools/mkimage-raw-efi/Dockerfile b/tools/mkimage-raw-efi/Dockerfile
index f715481e8..3d2dfcf16 100644
--- a/tools/mkimage-raw-efi/Dockerfile
+++ b/tools/mkimage-raw-efi/Dockerfile
@@ -1,6 +1,6 @@
 FROM linuxkit/grub:292deb743d85eb79cbd5b163841db8ccd2500677 AS grub
 
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 AS mirror
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 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 \
diff --git a/tools/mkimage-squashfs/Dockerfile b/tools/mkimage-squashfs/Dockerfile
index 353ba9097..bfd82a800 100644
--- a/tools/mkimage-squashfs/Dockerfile
+++ b/tools/mkimage-squashfs/Dockerfile
@@ -1,4 +1,4 @@
-FROM linuxkit/alpine:275ef778d89133ebec5e80d82c664c3549f919d4 AS mirror
+FROM linuxkit/alpine:a720d2b1b83556653abd52d61faa0fe020c2b161 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 \