diff --git a/.docker/ruby/Dockerfile b/.docker/ruby/Dockerfile
index a6775f9c..88cf8de1 100644
--- a/.docker/ruby/Dockerfile
+++ b/.docker/ruby/Dockerfile
@@ -2,14 +2,13 @@ FROM ruby:2.7
 
 RUN curl -sL https://deb.nodesource.com/setup_12.x | bash -
 
-RUN apt-get update -qq && \
-    apt-get install -y --no-install-recommends build-essential \
+RUN apt-get update -qq \
+    && apt-get install -y --no-install-recommends build-essential \
     libpq-dev postgresql-client \ 
     libxml2-dev libxslt1-dev \
     libmagickwand-dev imagemagick \
-    nodejs
-
-RUN rm -rf /var/lib/apt/lists/*
+    nodejs \
+    && rm -rf /var/lib/apt/lists/*
 
 RUN mkdir /app
 WORKDIR /app