diff --git a/mediawiki/Dockerfile b/mediawiki/Dockerfile
index 08fc296..3622133 100644
--- a/mediawiki/Dockerfile
+++ b/mediawiki/Dockerfile
@@ -77,11 +77,4 @@ RUN wget https://raw.githubusercontent.com/composer/getcomposer.org/76a7060ccb93
 
 COPY composer.local.json /var/www/html/composer.local.json
 
-RUN cd /var/www/html/extensions/cldr \
-    && wget http://www.unicode.org/Public/cldr/latest/core.zip \
-    && unzip core.zip -d core \
-    && rm core.zip \
-    && php rebuild.php \
-    && cd -
-
 RUN cd /var/www/html && composer update && cd -