diff --git a/scripts/govtool/docker-compose.sanchonet.yml b/scripts/govtool/docker-compose.sanchonet.yml
index 5c052a02d..7c85b506f 100644
--- a/scripts/govtool/docker-compose.sanchonet.yml
+++ b/scripts/govtool/docker-compose.sanchonet.yml
@@ -182,8 +182,10 @@ services:
       - "traefik.enable=true"
       - "traefik.http.routers.backend.rule=Host(`${DOMAIN:-$ENVIRONMENT-$CARDANO_NETWORK.govtool.byron.network}`) && PathPrefix(`/api`)"
       - "traefik.http.middlewares.backend-stripprefix.stripprefix.prefixes=/api"
-      - "traefik.http.middlewares.backend-cors.headers.customresponseheaders.Access-Control-Allow-Origin=https://${DOMAIN:-$ENVIRONMENT-$CARDANO_NETWORK.govtool.byron.network}"
-      - "traefik.http.middlewares.backend-cors.headers.customresponseheaders.Access-Control-Allow-Methods=GET,HEAD,OPTIONS"
+      - "traefik.http.middlewares.backend-cors.headers.accesscontrolallowmethods=GET,HEAD,OPTIONS"
+      - "traefik.http.middlewares.backend-cors.headers.accesscontrolallowheaders=*"
+      - "traefik.http.middlewares.backend-cors.headers.accesscontrolalloworiginlist=https://${DOMAIN:-$ENVIRONMENT-$CARDANO_NETWORK.govtool.byron.network},http://localhost"
+      - "traefik.http.middlewares.backend-cors.headers.accesscontrolmaxage=100"
       - "traefik.http.middlewares.backend-cors.headers.addvaryheader=true"
       - "traefik.http.routers.backend.middlewares=backend-stripprefix@docker,backend-cors@docker"
       - "traefik.http.routers.backend.entrypoints=websecure"