diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2cdfc30f..6801412f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,5 +15,5 @@ jobs:
     needs: Spec
     uses: "puppetlabs/cat-github-actions/.github/workflows/module_acceptance.yml@main"
     with:
-      flags: "--nightly"
+      flags: "--platform-include sles-15 --platform-include sles-12"
     secrets: "inherit"
diff --git a/manifests/init.pp b/manifests/init.pp
index 31750303..ce5dcb9a 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -110,13 +110,17 @@
     default    => '--jre'
   }
 
-  # If the OS is SLES >= 15.3, enable the legacy repo to install net-tools-deprecated package
-  if ($facts['os']['family'] in ['SLES', 'SUSE']) and (versioncmp($facts['os']['release']['full'], '15.3') >= 0) {
-    exec { 'Enable legacy repos':
-      path    => '/bin:/usr/bin/:/sbin:/usr/sbin',
-      command => "SUSEConnect --product sle-module-legacy/${facts['os']['release']['full']}/x86_64",
-      unless  => "SUSEConnect --status-text | grep sle-module-legacy/${facts['os']['release']['full']}/x86_64",
+  # TEMPORARY FIX: If no repos are configured on SLES, add openSUSE Leap as fallback
+  # This workaround is needed because GCP-provisioned SLES images are unregistered BYOS
+  # without any package repositories configured. Remove this once proper PAYG images are used.
+  if ($facts['os']['family'] in ['SLES', 'SUSE']) {
+    exec { 'Configure zypper repo for SLES':
+      path      => '/bin:/usr/bin:/sbin:/usr/sbin',
+      command   => 'zypper --non-interactive --gpg-auto-import-keys ar http://download.opensuse.org/distribution/leap/15.6/repo/oss/ opensuse-leap-fallback && zypper --non-interactive --gpg-auto-import-keys refresh',
+      unless    => "zypper lr 2>/dev/null | grep -q 'opensuse-leap-fallback\\|http'",
+      logoutput => true,
     }
+    -> Package['java']
   }
 
   if $facts['os']['family'] == 'Debian' {