diff --git a/molecule/resources/playbooks/prepare.yml b/molecule/resources/playbooks/prepare.yml
index 66ab4151add612e1c722b269a5f2a525821f4cf5..b11527da5db6c4e8bcf2257e9a9edf69ab7e08a5 100644
--- a/molecule/resources/playbooks/prepare.yml
+++ b/molecule/resources/playbooks/prepare.yml
@@ -41,7 +41,7 @@
               gpgkey: "https://dl.fedoraproject.org/pub/epel/RPM-GPG-KEY-EPEL-{{ ansible_distribution_major_version }}"
             - name: "slub"
               description: SLUB YUM repo
-              baseurl: "http://sdvrhelrepo.slub-dresden.de/"
+              baseurl: "https://sdvrhelrepo.slub-dresden.de/"
               gpgcheck: "false"
           become: true
         - name: remove legacy repo configuration to avoid double configuration for SLUB repo