diff --git a/global/overlay/etc/puppet/manifests/cosmos-site.pp b/global/overlay/etc/puppet/manifests/cosmos-site.pp
index 02047de2..1c6e5b95 100644
--- a/global/overlay/etc/puppet/manifests/cosmos-site.pp
+++ b/global/overlay/etc/puppet/manifests/cosmos-site.pp
@@ -130,6 +130,7 @@ class md_repo_client {
 }
 
 class md_signer($dest_host=undef,$dest_dir="") {
+   package { 'xsltproc': ensure => latest } ->
    sunet::snippets::secret_file {"/etc/credentials/metadata.key":
       hiera_key => 'eidas_metadata_key',
       base64    => true