Stork Agent exporters binds on * (all) no matter what is listed in config

As the title says: Stork agent kea, bind9 exporters always listens on *:Port no matter what is given in the agent.env configuration file.

agent.env configuration:

# address to bind ie. for listening
STORK_AGENT_ADDRESS=127.0.0.1
STORK_AGENT_PROMETHEUS_KEA_EXPORTER_ADDRESS=127.0.0.1
STORK_AGENT_PROMETHEUS_BIND9_EXPORTER_ADDRESS=127.0.0.1

ss command output:

LISTEN   0        4096                 127.0.0.1:8080            0.0.0.0:*       users:(("stork-agent",pid=64694,fd=8))
LISTEN   0        4096                         *:9119                  *:*       users:(("stork-agent",pid=64694,fd=7))
LISTEN   0        4096                         *:9547                  *:*       users:(("stork-agent",pid=64694,fd=46))

Seems like only the STORK_AGENT_ADDRESS parameter is proceeded as it should.

Stork agent version: 0.18.0

Stork installed from repository, so starting just with systemctl start isc-stork-agent

Stork logs:

Jun  8 16:06:37 ubuntu-server stork-agent[1398]: #033[36mINFO#033[0m[2021-06-08 16:06:37]             main.go:23    Starting Stork Agent, version 0.18.0, build date 2021-06-01 09:57
Jun  8 16:06:37 ubuntu-server stork-agent[1398]: #033[36mINFO#033[0m[2021-06-08 16:06:37]  promkeaexporter.go:269   Prometheus Kea Exporter listening on :9547, stats pulling interval: 10 seconds
Jun  8 16:06:37 ubuntu-server stork-agent[1398]: #033[36mINFO#033[0m[2021-06-08 16:06:37]          monitor.go:95    Started app monitor
Jun  8 16:06:37 ubuntu-server stork-agent[1398]: #033[36mINFO#033[0m[2021-06-08 16:06:37]prombind9exporter.go:822   Prometheus BIND 9 Exporter listening on :9119, stats pulling interval: 10 seconds
Jun  8 16:06:37 ubuntu-server stork-agent[1398]: #033[36mINFO#033[0m[2021-06-08 16:06:37]            agent.go:420   started serving Stork Agent                   #033[36maddress#033[0m="[::]:8080"