diff --git a/backend/app/models/post.rb b/backend/app/models/post.rb
index 4a8f09b..4d7a851 100644
--- a/backend/app/models/post.rb
+++ b/backend/app/models/post.rb
@@ -56,7 +56,7 @@ class Post < ApplicationRecord
 
   has_many :post_tags, dependent: :destroy, inverse_of: :post
   has_many :tags, through: :post_tags
-  has_many :active_tags, -> { where(tags: { discarded_at: nil }) },
+  has_many :active_tags, -> { where(tags: { deprecated_at: nil }) },
            through: :post_tags,
            source: :tag