diff --git a/README.md b/README.md
index 0392b7d30..448e62df9 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,7 @@ addon | version | summary
 [base_search_fuzzy](base_search_fuzzy/) | 9.0.1.0.0 | Fuzzy search with the PostgreSQL trigram extension
 [base_suspend_security](base_suspend_security/) | 9.0.1.0.0 | Suspend security checks for a call
 [base_technical_features](base_technical_features/) | 9.0.1.0.0 | Access to technical features without activating debug mode
+[base_tier_validation](base_tier_validation/) | 9.0.1.0.0 | Implement a validation process based on tiers.
 [base_user_gravatar](base_user_gravatar/) | 9.0.1.0.0 | Synchronize Gravatar Image
 [base_user_role](base_user_role/) | 9.0.1.0.0 | User roles
 [base_view_inheritance_extension](base_view_inheritance_extension/) | 9.0.1.1.0 | Adds more operators for view inheritance