diff --git a/dedyn.yml b/dedyn.yml
index 18eb80d..f695143 100644
--- a/dedyn.yml
+++ b/dedyn.yml
@@ -73,6 +73,15 @@
                 if curl -i "https://${updatesrv}/?hostname=${dynaddr}&${updatestring}" --header "Authorization: Token ${dedynpw}"
                 then
                   g_echo_ok "DynDNS IP ${ip} for ${dynaddr} renewed"
+                  # restart traefik on Problems with ACME/letsencrypt
+                  if [ -f /home/docker/traefik/docker-compose.yml ]
+                  then
+                    if docker compose -f /home/docker/traefik/docker-compose.yml logs | egrep -q "error.+acme-challenge"
+                    then
+                      docker compose -f /home/docker/traefik/docker-compose.yml down
+                      docker compose -f /home/docker/traefik/docker-compose.yml up -d
+                    fi
+                  fi
                 else
                   g_echo_error "DynDNS IP ${ip} for ${dynaddr}"
                 fi