diff --git a/docker/puppetserver/Dockerfile b/docker/puppetserver/Dockerfile
index d8e5323a55..7737af41a5 100644
--- a/docker/puppetserver/Dockerfile
+++ b/docker/puppetserver/Dockerfile
@@ -89,6 +89,7 @@ RUN apt-get update && \
     git config --global user.email "release@puppet.com" && \
     chmod 0755 /usr/local/bin/lein && \
     /usr/local/bin/lein && \
+    gem install --no-doc public_suffix -v 4.0.7 && \
     gem install --no-doc bundler fpm
 
 COPY . /puppetserver