diff --git a/Makefile b/Makefile
index 756fe28..6480911 100644
--- a/Makefile
+++ b/Makefile
@@ -5,12 +5,12 @@ container_ids=`buildah ls --format "{{.ContainerID}}"`
 # default setttings for official curl images
 debian_base=docker.io/debian
 fedora_base=docker.io/fedora
-base=docker.io/alpine:3.19.1
+base=docker.io/alpine:3.20.0
 arch=""
 compiler="gcc"
 build_opts=" --enable-static --disable-ldap --enable-ipv6 --enable-unix-sockets -with-ssl --with-libssh2 --with-nghttp2=/usr --with-gssapi"
-dev_deps="git zsh libssh2 libssh2-dev libssh2-static autoconf automake build-base groff openssl curl-dev python3 python3-dev libtool curl stunnel perl nghttp2 brotli brotli-dev krb5-dev libpsl-dev"
-base_deps="brotli brotli-dev libssh2 nghttp2-dev libidn2 krb5 libpsl"
+dev_deps="git zsh libssh2 libssh2-dev libssh2-static autoconf automake build-base groff openssl curl-dev python3 python3-dev libtool curl stunnel perl nghttp2 brotli brotli-dev krb5-dev libpsl-dev zstd-libs"
+base_deps="brotli brotli-dev libssh2 nghttp2-dev libidn2 krb5 libpsl zstd-libs"
 
 ##############################################
 # debian dev image