Error while building entryPoints when pinning 443 to ipv6

static configuration file:

entryPoints:
httpV4:
address: "1.1.1.1:80"
httpsV4:
address: "1.1.1.1:443"
httpV6:
address: "[dead::1]:80"
httpsV6:
address: "[dead::1]:443"
.....
.....

docker compose file:
reverse-proxy:
image: traefik:v2.2.7 # The official Traefik docker image
ports:
- "80:80" # The HTTP port
- "443:443" # The HTTPS port
volumes:
- ./ui_policy_traefik.yml:/traefik.yml:ro
container_name: LB
network_mode: host
.......
.......

output when I bring up the traefik container:

traefik.go:72: command traefik error: error while building entryPoint httpV6: error preparing server: error opening listener: listen tcp [dead::1]:80: bind: cannot assign requested address

What am I doing wrong? Or is this an known issue?