diff --git a/Dockerfile b/Dockerfile
index ac90a548..871e6fb0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ ENV RAILS_ENV production
 # principal
 RUN apk add --no-cache libxslt libxml2 postgresql-libs libssh2 \
       rsync git jpegoptim vips tectonic oxipng git-lfs openssh-client \
-      yarn daemonize ruby-webrick
+      yarn daemonize ruby-webrick postgresql-client dateutils file
 
 RUN gem install --no-document --no-user-install foreman
 RUN wget https://github.com/jgm/pandoc/releases/download/${PANDOC_VERSION}/pandoc-${PANDOC_VERSION}-linux-amd64.tar.gz -O - | tar --strip-components 1 -xvzf - pandoc-${PANDOC_VERSION}/bin/pandoc && mv /bin/pandoc /usr/bin/pandoc