diff --git a/Dockerfile b/Dockerfile
index 8cad9de..84dda51 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,7 @@
 FROM registry.dege.au/leenooks/php:8.1-fpm-alpine-pgsql-server
 
+VOLUME [ "/var/cache/composer" ]
+
 COPY . /var/www/html/
 
 RUN mkdir -p ${COMPOSER_HOME} && \