diff --git a/src/app/Dockerfile b/src/app/Dockerfile
index 5b2dfe2..873de93 100644
--- a/src/app/Dockerfile
+++ b/src/app/Dockerfile
@@ -5,7 +5,7 @@ ENV SCRIPT_ROOT=/opt/tt-rss
 
 RUN apk add --no-cache dcron php81 php81-fpm php81-phar \
 	php81-pdo php81-gd php81-pgsql php81-pdo_pgsql \
-	php81-mbstring php81-intl php81-xml php81-curl \
+	php81-mbstring php81-intl php81-xml php81-curl php81-simplexml \
 	php81-session php81-tokenizer php81-dom php81-fileinfo php81-ctype \
 	php81-json php81-iconv php81-pcntl php81-posix php81-zip php81-exif \
 	php81-openssl git postgresql-client sudo php81-pecl-xdebug rsync && \