diff --git a/http/nginx.conf b/http/nginx.conf
index be38afb..c6aa278 100644
--- a/http/nginx.conf
+++ b/http/nginx.conf
@@ -25,7 +25,6 @@ http {
 
     server {
         listen 8080 default_server;
-        listen [::]:8080 default_server;
         server_name _;
 
         root /srv/repository;
diff --git a/scripts/build-release.sh b/scripts/build-release.sh
index 031c4ef..575fbb5 100755
--- a/scripts/build-release.sh
+++ b/scripts/build-release.sh
@@ -157,6 +157,7 @@ fi
 
 if aptly -config="$APTLY_CONF" publish list -raw | awk -v d="$REPO_DISTRIBUTION" '$2 == d {found=1} END{exit !found}'; then
     aptly -config="$APTLY_CONF" publish switch \
+        -force-overwrite \
         "${APTLY_SIGN_ARGS[@]}" \
         "$REPO_DISTRIBUTION" . "$SNAPSHOT" >/dev/null
 else