diff --git a/tests/foreman/api/test_convert2rhel.py b/tests/foreman/api/test_convert2rhel.py
index 026acb467b..24684eb9eb 100644
--- a/tests/foreman/api/test_convert2rhel.py
+++ b/tests/foreman/api/test_convert2rhel.py
@@ -161,6 +161,14 @@ def centos(
     # updating centos packages on CentOS 8 is necessary for conversion
     major = version.split('.')[0]
     if major == '8':
+        # Workaround: contents for CentOS 8 are archived and moved to vault mirror after it is EOL
+        centos_host.execute(
+            'sudo sed -i -e "s|mirrorlist=|#mirrorlist=|g" /etc/yum.repos.d/CentOS-*'
+        )
+        centos_host.execute(
+            'sudo sed -i -e "s|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g" /etc/yum.repos.d/CentOS-*'
+        )
+
         centos_host.execute('yum -y update centos-*')
     repo_url = settings.repos.convert2rhel.convert_to_rhel_repo.format(major)
     repo = create_repo(module_target_sat, module_entitlement_manifest_org, repo_url)