diff --git a/app/controllers/admin/tags_controller.rb b/app/controllers/admin/tags_controller.rb
index 6bccb176a..5e53033c5 100644
--- a/app/controllers/admin/tags_controller.rb
+++ b/app/controllers/admin/tags_controller.rb
@@ -4,12 +4,12 @@ class Admin::TagsController < Admin::BaseController
   respond_to :html, :js
 
   def index
-    @tags = ActsAsTaggableOn::Tag.category.page(params[:page])
-    @tag  = ActsAsTaggableOn::Tag.category.new
+    @tags = Tag.category.page(params[:page])
+    @tag  = Tag.category.new
   end
 
   def create
-    ActsAsTaggableOn::Tag.category.create(tag_params)
+    Tag.category.create(tag_params)
     redirect_to admin_tags_path
   end
 
@@ -25,7 +25,7 @@ class Admin::TagsController < Admin::BaseController
     end
 
     def find_tag
-      @tag = ActsAsTaggableOn::Tag.category.find(params[:id])
+      @tag = Tag.category.find(params[:id])
     end
 
 end
diff --git a/app/controllers/budgets/ballot/lines_controller.rb b/app/controllers/budgets/ballot/lines_controller.rb
index 5d882c51b..4d255e2bd 100644
--- a/app/controllers/budgets/ballot/lines_controller.rb
+++ b/app/controllers/budgets/ballot/lines_controller.rb
@@ -64,7 +64,7 @@ module Budgets
         end
 
         def load_categories
-          @categories = ActsAsTaggableOn::Tag.category.order(:name)
+          @categories = Tag.category.order(:name)
         end
 
         def load_ballot_referer
diff --git a/app/controllers/budgets/investments_controller.rb b/app/controllers/budgets/investments_controller.rb
index 0276d9aa5..7e0107845 100644
--- a/app/controllers/budgets/investments_controller.rb
+++ b/app/controllers/budgets/investments_controller.rb
@@ -146,7 +146,7 @@ module Budgets
       end
 
       def load_categories
-        @categories = ActsAsTaggableOn::Tag.category.order(:name)
+        @categories = Tag.category.order(:name)
       end
 
       def load_content_blocks
diff --git a/app/controllers/concerns/commentable_actions.rb b/app/controllers/concerns/commentable_actions.rb
index ffebce26d..e8e462839 100644
--- a/app/controllers/concerns/commentable_actions.rb
+++ b/app/controllers/concerns/commentable_actions.rb
@@ -110,12 +110,12 @@ module CommentableActions
     end
 
     def load_categories
-      @categories = ActsAsTaggableOn::Tag.category.order(:name)
+      @categories = Tag.category.order(:name)
     end
 
     def parse_tag_filter
       if params[:tag].present?
-        @tag_filter = params[:tag] if ActsAsTaggableOn::Tag.named(params[:tag]).exists?
+        @tag_filter = params[:tag] if Tag.named(params[:tag]).exists?
       end
     end
 
diff --git a/app/controllers/management/budgets/investments_controller.rb b/app/controllers/management/budgets/investments_controller.rb
index da7bb117e..393e4e888 100644
--- a/app/controllers/management/budgets/investments_controller.rb
+++ b/app/controllers/management/budgets/investments_controller.rb
@@ -67,7 +67,7 @@ class Management::Budgets::InvestmentsController < Management::BaseController
     end
 
     def load_categories
-      @categories = ActsAsTaggableOn::Tag.category.order(:name)
+      @categories = Tag.category.order(:name)
     end
 
 end
diff --git a/app/controllers/tags_controller.rb b/app/controllers/tags_controller.rb
index c58067048..fc9ac5797 100644
--- a/app/controllers/tags_controller.rb
+++ b/app/controllers/tags_controller.rb
@@ -1,10 +1,10 @@
 class TagsController < ApplicationController
 
-  load_and_authorize_resource class: ActsAsTaggableOn::Tag
+  load_and_authorize_resource
   respond_to :json
 
   def suggest
-    @tags = ActsAsTaggableOn::Tag.search(params[:search]).map(&:name)
+    @tags = Tag.search(params[:search]).map(&:name)
     respond_with @tags
   end
 
diff --git a/app/models/abilities/common.rb b/app/models/abilities/common.rb
index 8087e4dba..e670f86ca 100644
--- a/app/models/abilities/common.rb
+++ b/app/models/abilities/common.rb
@@ -52,7 +52,7 @@ module Abilities
       can :suggest, Debate
       can :suggest, Proposal
       can :suggest, Legislation::Proposal
-      can :suggest, ActsAsTaggableOn::Tag
+      can :suggest, Tag
 
       can [:flag, :unflag], Comment
       cannot [:flag, :unflag], Comment, user_id: user.id
diff --git a/app/models/proposal.rb b/app/models/proposal.rb
index 9733a542f..724b7de2e 100644
--- a/app/models/proposal.rb
+++ b/app/models/proposal.rb
@@ -156,7 +156,7 @@ class Proposal < ApplicationRecord
 
   def self.for_summary
     summary = {}
-    categories = ActsAsTaggableOn::Tag.category_names.sort
+    categories = Tag.category_names.sort
     geozones   = Geozone.names.sort
 
     groups = categories + geozones
diff --git a/app/models/tag_cloud.rb b/app/models/tag_cloud.rb
index 27b6c2d11..ee3184b51 100644
--- a/app/models/tag_cloud.rb
+++ b/app/models/tag_cloud.rb
@@ -16,7 +16,7 @@ class TagCloud
   end
 
   def category_names
-    ActsAsTaggableOn::Tag.category_names.map(&:downcase)
+    Tag.category_names.map(&:downcase)
   end
 
   def geozone_names
diff --git a/config/api.yml b/config/api.yml
index 0814d5552..6e47c090d 100644
--- a/config/api.yml
+++ b/config/api.yml
@@ -20,7 +20,7 @@ Debate:
     comments:           [Comment]
     public_author:      User
     votes_for:          [Vote]
-    tags:               ["ActsAsTaggableOn::Tag"]
+    tags:               [Tag]
 Proposal:
   fields:
     id:                   integer
@@ -42,7 +42,7 @@ Proposal:
     proposal_notifications: [ProposalNotification]
     public_author:        User
     votes_for:            [Vote]
-    tags:                 ["ActsAsTaggableOn::Tag"]
+    tags:                 [Tag]
 Comment:
   fields:
     id:                 integer
@@ -68,7 +68,7 @@ ProposalNotification:
     proposal_id:       integer
     public_created_at: string
     proposal:          Proposal
-ActsAsTaggableOn::Tag:
+Tag:
   fields:
     id:               integer
     name:             string
diff --git a/db/dev_seeds/debates.rb b/db/dev_seeds/debates.rb
index 9422f0985..8e5de0c3d 100644
--- a/db/dev_seeds/debates.rb
+++ b/db/dev_seeds/debates.rb
@@ -19,7 +19,7 @@ section "Creating Debates" do
     end
   end
 
-  tags = ActsAsTaggableOn::Tag.where(kind: "category")
+  tags = Tag.where(kind: "category")
   30.times do
     author = User.all.sample
     description = "<p>#{Faker::Lorem.paragraphs.join("</p><p>")}</p>"
diff --git a/db/dev_seeds/notifications.rb b/db/dev_seeds/notifications.rb
index 475927339..5452c7f79 100644
--- a/db/dev_seeds/notifications.rb
+++ b/db/dev_seeds/notifications.rb
@@ -3,7 +3,7 @@ section "Creating comment notifications" do
     debate = Debate.create!(author: user,
                             title: Faker::Lorem.sentence(3).truncate(60),
                             description: "<p>#{Faker::Lorem.paragraphs.join("</p><p>")}</p>",
-                            tag_list: ActsAsTaggableOn::Tag.all.sample(3).join(","),
+                            tag_list: Tag.all.sample(3).join(","),
                             geozone: Geozone.reorder("RANDOM()").first,
                             terms_of_service: "1")
 
diff --git a/db/dev_seeds/proposals.rb b/db/dev_seeds/proposals.rb
index 308eefd98..216adf056 100644
--- a/db/dev_seeds/proposals.rb
+++ b/db/dev_seeds/proposals.rb
@@ -109,7 +109,7 @@ section "Creating Successful Proposals" do
     add_image_to proposal
   end
 
-  tags = ActsAsTaggableOn::Tag.where(kind: "category")
+  tags = Tag.where(kind: "category")
   30.times do
     author = User.all.sample
     description = "<p>#{Faker::Lorem.paragraphs.join("</p><p>")}</p>"
diff --git a/db/dev_seeds/tags_categories.rb b/db/dev_seeds/tags_categories.rb
index 3ee08a1cb..b1ef647d5 100644
--- a/db/dev_seeds/tags_categories.rb
+++ b/db/dev_seeds/tags_categories.rb
@@ -1,17 +1,17 @@
 section "Creating Tags Categories" do
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.associations"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.culture"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.sports"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.social_rights"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.economy"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.employment"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.equity"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.sustainability"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.participation"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.mobility"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.media"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.health"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.transparency"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.security_emergencies"))
-  ActsAsTaggableOn::Tag.category.create!(name: I18n.t("seeds.categories.environment"))
+  Tag.category.create!(name: I18n.t("seeds.categories.associations"))
+  Tag.category.create!(name: I18n.t("seeds.categories.culture"))
+  Tag.category.create!(name: I18n.t("seeds.categories.sports"))
+  Tag.category.create!(name: I18n.t("seeds.categories.social_rights"))
+  Tag.category.create!(name: I18n.t("seeds.categories.economy"))
+  Tag.category.create!(name: I18n.t("seeds.categories.employment"))
+  Tag.category.create!(name: I18n.t("seeds.categories.equity"))
+  Tag.category.create!(name: I18n.t("seeds.categories.sustainability"))
+  Tag.category.create!(name: I18n.t("seeds.categories.participation"))
+  Tag.category.create!(name: I18n.t("seeds.categories.mobility"))
+  Tag.category.create!(name: I18n.t("seeds.categories.media"))
+  Tag.category.create!(name: I18n.t("seeds.categories.health"))
+  Tag.category.create!(name: I18n.t("seeds.categories.transparency"))
+  Tag.category.create!(name: I18n.t("seeds.categories.security_emergencies"))
+  Tag.category.create!(name: I18n.t("seeds.categories.environment"))
 end
diff --git a/doc/api/api_en.md b/doc/api/api_en.md
index f7fb1a52e..8848be487 100644
--- a/doc/api/api_en.md
+++ b/doc/api/api_en.md
@@ -134,7 +134,7 @@ The models are the following:
 | `Comment`               | Comments on debates, proposals and other comments |
 | `Geozone`               | Geozones (districts)          |
 | `ProposalNotification`  | Notifications related to proposals |
-| `ActsAsTaggableOn::Tag` | Tags on debates and proposals |
+| `Tag`                   | Tags on debates and proposals |
 | `Vote`                  | Information related to votes  |
 
 ## Examples of queries
diff --git a/doc/api/api_es.md b/doc/api/api_es.md
index 3292809c4..a33c2bd33 100644
--- a/doc/api/api_es.md
+++ b/doc/api/api_es.md
@@ -134,7 +134,7 @@ La lista de modelos es la siguiente:
 | `Comment`               | Comentarios en debates, propuestas y otros comentarios |
 | `Geozone`               | Geozonas (distritos)         |
 | `ProposalNotification`  | Notificaciones asociadas a propuestas |
-| `ActsAsTaggableOn::Tag` | Tags en debates y propuestas |
+| `Tag`                   | Tags en debates y propuestas |
 | `Vote`                  | Información sobre votos      |
 
 ## Ejemplos de consultas
diff --git a/spec/factories/classifications.rb b/spec/factories/classifications.rb
index df2ba4456..d2fde4b9e 100644
--- a/spec/factories/classifications.rb
+++ b/spec/factories/classifications.rb
@@ -1,5 +1,5 @@
 FactoryBot.define do
-  factory :tag, class: "ActsAsTaggableOn::Tag" do
+  factory :tag do
     sequence(:name) { |n| "Tag #{n} name" }
 
     trait :category do
diff --git a/spec/features/admin/tags_spec.rb b/spec/features/admin/tags_spec.rb
index 713c583ce..1bad1ccf6 100644
--- a/spec/features/admin/tags_spec.rb
+++ b/spec/features/admin/tags_spec.rb
@@ -86,7 +86,7 @@ describe "Admin tags" do
         click_button "Create topic"
       end
 
-      expect(ActsAsTaggableOn::Tag.category.where(name: "wow_category")).to exist
+      expect(Tag.category.where(name: "wow_category")).to exist
     end
   end
 
diff --git a/spec/lib/acts_as_taggable_on_spec.rb b/spec/lib/acts_as_taggable_on_spec.rb
index 4e496ed10..12521d67e 100644
--- a/spec/lib/acts_as_taggable_on_spec.rb
+++ b/spec/lib/acts_as_taggable_on_spec.rb
@@ -8,7 +8,7 @@ describe ActsAsTaggableOn do
       let(:debate) { create(:debate) }
 
       it "increases and decreases the tag's custom counters" do
-        tag = ActsAsTaggableOn::Tag.create(name: "foo")
+        tag = Tag.create(name: "foo")
 
         expect(tag.debates_count).to eq(0)
         expect(tag.proposals_count).to eq(0)
@@ -47,7 +47,7 @@ describe ActsAsTaggableOn do
   describe "Tag" do
     describe "#recalculate_custom_counter_for" do
       it "updates the counters of proposals and debates, taking into account hidden ones" do
-        tag = ActsAsTaggableOn::Tag.create(name: "foo")
+        tag = Tag.create(name: "foo")
 
         create(:proposal, tag_list: "foo")
         create(:proposal, :hidden, tag_list: "foo")
@@ -73,7 +73,7 @@ describe ActsAsTaggableOn do
         proposal.tag_list.add(tag)
         proposal.save
 
-        expect(ActsAsTaggableOn::Tag.public_for_api).to eq [tag]
+        expect(Tag.public_for_api).to eq [tag]
       end
 
       it "returns tags whose kind is 'category' and have at least one tagging whose taggable is not hidden" do
@@ -82,7 +82,7 @@ describe ActsAsTaggableOn do
         proposal.tag_list.add(tag)
         proposal.save
 
-        expect(ActsAsTaggableOn::Tag.public_for_api).to eq [tag]
+        expect(Tag.public_for_api).to eq [tag]
       end
 
       it "blocks other kinds of tags" do
@@ -91,13 +91,13 @@ describe ActsAsTaggableOn do
         proposal.tag_list.add(tag)
         proposal.save
 
-        expect(ActsAsTaggableOn::Tag.public_for_api).to be_empty
+        expect(Tag.public_for_api).to be_empty
       end
 
       it "blocks tags that don't have at least one tagged element" do
         create(:tag)
 
-        expect(ActsAsTaggableOn::Tag.public_for_api).to be_empty
+        expect(Tag.public_for_api).to be_empty
       end
 
       it "only permits tags on proposals or debates" do
@@ -117,7 +117,7 @@ describe ActsAsTaggableOn do
         budget_investment.save
         debate.save
 
-        expect(ActsAsTaggableOn::Tag.public_for_api).to match_array([tag_1, tag_3])
+        expect(Tag.public_for_api).to match_array([tag_1, tag_3])
       end
 
       it "blocks tags after its taggings became hidden" do
@@ -126,11 +126,11 @@ describe ActsAsTaggableOn do
         proposal.tag_list.add(tag)
         proposal.save
 
-        expect(ActsAsTaggableOn::Tag.public_for_api).to eq [tag]
+        expect(Tag.public_for_api).to eq [tag]
 
         proposal.delete
 
-        expect(ActsAsTaggableOn::Tag.public_for_api).to be_empty
+        expect(Tag.public_for_api).to be_empty
       end
     end
 
@@ -141,10 +141,10 @@ describe ActsAsTaggableOn do
         create(:tag, name: "Salud")
         create(:tag, name: "Famosos")
 
-        expect(ActsAsTaggableOn::Tag.pg_search("f").length).to eq(2)
-        expect(ActsAsTaggableOn::Tag.search("cultura").first.name).to eq("Cultura")
-        expect(ActsAsTaggableOn::Tag.search("sal").first.name).to eq("Salud")
-        expect(ActsAsTaggableOn::Tag.search("fami").first.name).to eq("Familia")
+        expect(Tag.pg_search("f").length).to eq(2)
+        expect(Tag.search("cultura").first.name).to eq("Cultura")
+        expect(Tag.search("sal").first.name).to eq("Salud")
+        expect(Tag.search("fami").first.name).to eq("Familia")
       end
     end
 
diff --git a/spec/lib/cache_spec.rb b/spec/lib/cache_spec.rb
index 5d5ddb0fe..4289f938f 100644
--- a/spec/lib/cache_spec.rb
+++ b/spec/lib/cache_spec.rb
@@ -5,7 +5,7 @@ describe "Cache flow" do
   describe "Tag destroy" do
     it "invalidates Debate cache keys" do
       debate = create(:debate, tag_list: "Good, Bad")
-      tag = ActsAsTaggableOn::Tag.find_by(name: "Bad")
+      tag = Tag.find_by(name: "Bad")
 
       expect { tag.destroy }.to change { debate.reload.cache_key }
     end
diff --git a/spec/lib/graphql_spec.rb b/spec/lib/graphql_spec.rb
index 66dec9825..e579ce22e 100644
--- a/spec/lib/graphql_spec.rb
+++ b/spec/lib/graphql_spec.rb
@@ -521,7 +521,7 @@ describe "Consul Schema" do
 
     it "does not display tags for taggings that are not public" do
       create(:proposal, tag_list: "Health")
-      allow(ActsAsTaggableOn::Tag).to receive(:public_for_api).and_return([])
+      allow(Tag).to receive(:public_for_api).and_return([])
 
       response = execute("{ tags { edges { node { name } } } }")
       received_tags = extract_fields(response, "tags", "name")
diff --git a/spec/models/debate_spec.rb b/spec/models/debate_spec.rb
index 0b4f43256..99fefc037 100644
--- a/spec/models/debate_spec.rb
+++ b/spec/models/debate_spec.rb
@@ -403,7 +403,7 @@ describe Debate do
   describe "custom tag counters when hiding/restoring" do
     it "decreases the tag counter when hiden, and increases it when restored" do
       debate = create(:debate, tag_list: "foo")
-      tag = ActsAsTaggableOn::Tag.where(name: "foo").first
+      tag = Tag.where(name: "foo").first
       expect(tag.debates_count).to eq(1)
 
       debate.hide
diff --git a/spec/models/proposal_spec.rb b/spec/models/proposal_spec.rb
index 6df2ea848..08032f4a1 100644
--- a/spec/models/proposal_spec.rb
+++ b/spec/models/proposal_spec.rb
@@ -346,7 +346,7 @@ describe Proposal do
   describe "custom tag counters when hiding/restoring" do
     it "decreases the tag counter when hiden, and increases it when restored" do
       proposal = create(:proposal, tag_list: "foo")
-      tag = ActsAsTaggableOn::Tag.where(name: "foo").first
+      tag = Tag.where(name: "foo").first
       expect(tag.proposals_count).to eq(1)
 
       proposal.hide