diff --git a/Dockerfile b/Dockerfile
index 10c405b354..b53c70c05f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -478,7 +478,7 @@ ARG TARGETARCH
 RUN --mount=type=cache,target=/.cache GOOS=linux GOARCH=${TARGETARCH} go build ${GO_BUILDFLAGS} -ldflags "${GO_LDFLAGS}" -o /installer
 RUN chmod +x /installer
 
-FROM alpine:3.14.2 AS unicode-pf2
+FROM alpine:3.17.2 AS unicode-pf2
 RUN apk add --no-cache --update --no-scripts grub
 
 FROM scratch AS install-artifacts-amd64
@@ -505,7 +505,7 @@ FROM install-artifacts-${INSTALLER_ARCH} AS install-artifacts
 COPY --from=pkg-grub / /
 COPY --from=unicode-pf2 /usr/share/grub/unicode.pf2 /usr/share/grub/unicode.pf2
 
-FROM alpine:3.14.1 AS installer
+FROM alpine:3.17.2 AS installer
 RUN apk add --no-cache --update --no-scripts \
     bash \
     efibootmgr \