diff --git a/manifests/repo/apt_postgresql_org.pp b/manifests/repo/apt_postgresql_org.pp
index 3e671f3..1bbf620 100644
--- a/manifests/repo/apt_postgresql_org.pp
+++ b/manifests/repo/apt_postgresql_org.pp
@@ -1,32 +1,32 @@
 # PRIVATE CLASS: do not use directly
 class postgresql::repo::apt_postgresql_org inherits postgresql::repo {
   include ::apt
 
   # Here we have tried to replicate the instructions on the PostgreSQL site:
   #
   # http://www.postgresql.org/download/linux/debian/
   #
-  $default_baseurl = 'http://apt.postgresql.org/pub/repos/apt/'
+  $default_baseurl = 'https://apt.postgresql.org/pub/repos/apt/'
 
   $_baseurl = pick($postgresql::repo::baseurl, $default_baseurl)
 
   apt::pin { 'apt_postgresql_org':
     originator => 'apt.postgresql.org',
     priority   => 500,
   }
   -> apt::source { 'apt.postgresql.org':
     location => $_baseurl,
     release  => "${::lsbdistcodename}-pgdg",
     repos    => "main ${postgresql::repo::version}",
     key      => {
       id     => 'B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8',
       source => 'https://www.postgresql.org/media/keys/ACCC4CF8.asc',
     },
     include  => {
       src => false,
     },
   }
 
   Apt::Source['apt.postgresql.org']->Package<|tag == 'postgresql'|>
   Class['Apt::Update'] -> Package<|tag == 'postgresql'|>
 }