diff --git a/manifests/init.pp b/manifests/init.pp
index 99b0547..b5cdb30 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -194,7 +194,7 @@
 ) {
   $odoo_supported_versions = {
     'Debian' => {
-      '11' => ['14.0', '15.0', '16.0', '17.0', '18.0', 'system'],
+      '11' => ['14.0', '15.0', '16.0', 'system'],
       '12' => ['14.0', '15.0', '16.0', '17.0', '18.0'],
     },
     'Ubuntu' => {
diff --git a/spec/acceptance/odoo_spec.rb b/spec/acceptance/odoo_spec.rb
index 3f52df8..14fb598 100644
--- a/spec/acceptance/odoo_spec.rb
+++ b/spec/acceptance/odoo_spec.rb
@@ -5,7 +5,7 @@
 def odoo_supported_versions
   {
     'Debian' => {
-      '11' => ['14.0', '15.0', '16.0', '17.0', '18.0', 'system'],
+      '11' => ['14.0', '15.0', '16.0', 'system'],
       '12' => ['14.0', '15.0', '16.0', '17.0', '18.0'],
     },
     'Ubuntu' => {