diff --git a/dockerfile b/dockerfile
index cb7c7ae..e9e72a5 100644
--- a/dockerfile
+++ b/dockerfile
@@ -29,6 +29,7 @@ RUN apt install -y fluidsynth
 
 RUN curl https://getcomposer.org/download/2.1.14/composer.phar > composer.phar && mv composer.phar /usr/local/bin/composer && chmod +x /usr/local/bin/composer
 RUN cd /var/www/html && COMPOSER=composer.local.json composer require --no-update mediawiki/maps:~8.0
+RUN cd /var/www/html && COMPOSER=composer.local.json composer require --no-update wikimedia/normalized-exception
 
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