@linuxmaniac , maybe your build environment is somehow different? try to compare the result of the two commands:
``` docker build --build-arg KAMAILIO_VERSION=5.7.3 -t kamailio-deb-573 . && \ docker run --rm kamailio-deb-573
docker build --build-arg KAMAILIO_VERSION=5.7.4 -t kamailio-deb-574 . && \ docker run --rm kamailio-deb-574 ```
**Dockerfile:** ``` FROM debian:bookworm ARG DEBIAN_FRONTEND=noninteractive ARG KAMAILIO_VERSION=5.7.3
RUN apt-get update && apt-get install -y \ build-essential autoconf bison curl debhelper \ default-libmysqlclient-dev docbook-xml dpkg-dev erlang-dev flex gcc g++ git \ libcurl4-openssl-dev libdb-dev libev-dev libevent-dev \ libexpat1-dev libfreeradius-dev libgeoip-dev \ libhiredis-dev libjansson-dev libjson-c-dev \ libldap2-dev liblua5.1-0-dev libmaxminddb-dev \ libmemcached-dev libmnl-dev libmongoc-dev \ libmono-2.0-dev libmosquitto-dev libnats-dev \ libncurses5-dev libpcre3-dev libperl-dev \ libphonenumber-dev libpq-dev librabbitmq-dev \ libradcli-dev libreadline-dev libsasl2-dev \ libsctp-dev libsecsipid-dev libsnmp-dev \ libsqlite3-dev libssl-dev libsystemd-dev \ libunistring-dev libwebsockets-dev libxml2-dev \ pkg-config python3-dev ruby-dev unixodbc-dev \ uuid-dev xsltproc git wget
RUN cd /usr/src \ && git clone https://github.com/kamailio/kamailio.git kamailio \ && cd kamailio \ && git checkout -b $KAMAILIO_VERSION tags/$KAMAILIO_VERSION \ && ln -s pkg/kamailio/deb/bookworm debian \ && make cfg \ && make -j `nproc` deb
ENTRYPOINT ["/bin/bash", "-c"] CMD ["ls -al /usr/src/*.deb"] ```