-FROM alpine:3.6 as pdns-authoritative
+FROM alpine:3.10 as pdns-authoritative
ARG BUILDER_CACHE_BUSTER=
RUN apk add --no-cache gcc g++ make tar autoconf automake protobuf-dev lua-dev \
-FROM alpine:3.6 as dnsdist
+FROM alpine:3.10 as dnsdist
ARG BUILDER_CACHE_BUSTER=
RUN apk add --no-cache gcc g++ make tar autoconf automake protobuf-dev lua-dev \
-FROM alpine:3.6 as pdns-recursor
+FROM alpine:3.10 as pdns-recursor
ARG BUILDER_CACHE_BUSTER=
RUN apk add --no-cache gcc g++ make tar autoconf automake protobuf-dev lua-dev \
@INCLUDE Dockerfile.dnsdist
@ENDIF
-FROM alpine:3.6 as sdist
+FROM alpine:3.10 as sdist
ARG BUILDER_CACHE_BUSTER=
@IF [ -z "$M_all$M_authoritative$M_recursor$M_dnsdist"]