diff --git a/Dockerfile b/Dockerfile
index 68fe0fa..99a8f92 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM mediawiki:1.36
+FROM mediawiki:1.37
 
 RUN apt-get update \
     && apt-get install -y libldap2-dev libpng-dev git zip \
@@ -6,7 +6,7 @@ RUN apt-get update \
     && docker-php-ext-install -j$(nproc) ldap gd
 
 COPY composer.local.json /var/www/html/
-COPY --from=composer /usr/bin/composer /usr/bin/composer
+COPY --from=composer:2.1 /usr/bin/composer /usr/bin/composer
 RUN cd /var/www/html/ && composer update --no-dev
 
 # Needed for making branch name from MEDIAWIKI_MAJOR_VERSION