diff --git a/Dockerfile b/Dockerfile
index 65019dcaf9f938841c696e1afa47552e7a2b6c71..a7df8e725fa16b7b53f77d6176cb167776fe06d5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -39,6 +39,7 @@ RUN addgroup --gid 1000 discourse \
       libxml2 \
       nodejs \
       optipng \
+      postgresql-client \
  && npm install svgo uglify-js@"<3" -g \
  && cd /tmp \
  && curl -O http://www.lcdf.org/gifsicle/gifsicle-$GIFSICLE_VERSION.tar.gz \