diff --git a/actions/laravel-release/deploy-release.sh b/actions/laravel-release/deploy-release.sh
index 6529800..9fc73af 100755
--- a/actions/laravel-release/deploy-release.sh
+++ b/actions/laravel-release/deploy-release.sh
@@ -113,14 +113,10 @@ run ln -s ../../shared/storage "$host_release/storage"
 run docker exec --user "$php_user" --workdir "$container_release" \
     "$PHP_CONTAINER" composer install \
     --no-dev --no-interaction --prefer-dist --optimize-autoloader
-# Composer runs as the PHP user and creates host files that the runner cannot
-# delete later during release pruning. Normalize ownership back to the runner.
-if id act_runner >/dev/null 2>&1; then
-    run chown -R act_runner:"$php_group" "$host_release"
-else
-    run chgrp -R "$php_group" "$host_release"
-fi
-run chmod -R g+rwX "$host_release"
+# Keep the release readable by the PHP runtime group. Do not chown on the host:
+# act_runner cannot change ownership of files created inside the container.
+run docker exec "$PHP_CONTAINER" sh -c \
+    "chown -R ${php_user} '${container_release}' && chmod -R g+rwX '${container_release}'"
 
 if test "$dry_run" != "true"; then
     bash -c "$BACKUP_COMMAND"