diff --git a/roles/shell/tasks/packages.yml b/roles/shell/tasks/packages.yml
index de8c5df..b0058c2 100644
--- a/roles/shell/tasks/packages.yml
+++ b/roles/shell/tasks/packages.yml
@@ -82,6 +82,7 @@
       - php7.0-tidy
       - php7.0-xmlrpc
       - php7.0-xsl
+      - pngtools
       - python
       - python-certbot-apache
       - python-pip