diff --git a/Puppetfile b/Puppetfile
index 3abda37..aad677b 100644
--- a/Puppetfile
+++ b/Puppetfile
@@ -16,3 +16,8 @@ forge 'https://forge.puppet.com'
 #  git:    'https://github.com/puppetlabs/puppetlabs-apache',
 #  branch: 'docs_experiment'
 # latest
+
+mod 'puppetlabs/concat','6.1.0'
+mod 'puppetlabs/stadlib','6.0.0'
+mod 'puppetlabs/translate','2.0.0'
+mod 'puppetlabs/haproxy','4.0.0'