diff --git a/manifests/source.pp b/manifests/source.pp
index 713c7e9..bc93ad9 100644
--- a/manifests/source.pp
+++ b/manifests/source.pp
@@ -61,6 +61,8 @@ define apt::source(
       command     => "${provider} -y install ${required_packages}",
       logoutput   => 'on_failure',
       refreshonly => true,
+      tries       => 3,
+      try_sleep   => 1,
       subscribe   => File["${name}.list"],
       before      => Exec['apt_update'],
     }