diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index c9a834849..654a80644 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -130,17 +130,6 @@ Rails/OutputSafety:
     - 'app/helpers/users_helper.rb'
     - 'app/helpers/valuation_helper.rb'
 
-# Offense count: 7
-# Cop supports --auto-correct.
-# Configuration parameters: Include.
-# Include: app/models/**/*.rb
-Rails/Validation:
-  Exclude:
-    - 'app/models/comment.rb'
-    - 'app/models/spending_proposal.rb'
-    - 'app/models/verification/residence.rb'
-    - 'app/models/verification/sms.rb'
-
 # Offense count: 9
 Style/AccessorMethodName:
   Exclude:
diff --git a/app/models/budget/investment.rb b/app/models/budget/investment.rb
index b3b51996c..9d38d06d3 100644
--- a/app/models/budget/investment.rb
+++ b/app/models/budget/investment.rb
@@ -25,8 +25,8 @@ class Budget
     validates :author, presence: true
     validates :description, presence: true
     validates :heading_id, presence: true
-    validates_presence_of :unfeasibility_explanation, if: :unfeasibility_explanation_required?
-    validates_presence_of :price, if: :price_required?
+    validates :unfeasibility_explanation, presence: { if: :unfeasibility_explanation_required? }
+    validates :price, presence: { if: :price_required? }
 
     validates :title, length: { in: 4..Budget::Investment.title_max_length }
     validates :description, length: { maximum: Budget::Investment.description_max_length }
diff --git a/app/models/comment.rb b/app/models/comment.rb
index ffa02d09c..522b7324b 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -13,7 +13,7 @@ class Comment < ActiveRecord::Base
   validates :body, presence: true
   validates :user, presence: true
 
-  validates_inclusion_of :commentable_type, in: ["Debate", "Proposal", "Budget::Investment", "Poll::Question", "Legislation::Question", "Legislation::Annotation"]
+  validates :commentable_type, inclusion: { in: ["Debate", "Proposal", "Budget::Investment", "Poll::Question", "Legislation::Question", "Legislation::Annotation"] }
 
   validate :validate_body_length
 
diff --git a/app/models/officing/residence.rb b/app/models/officing/residence.rb
index 92333cc80..1714bbf0e 100644
--- a/app/models/officing/residence.rb
+++ b/app/models/officing/residence.rb
@@ -6,9 +6,9 @@ class Officing::Residence
 
   before_validation :call_census_api
 
-  validates_presence_of :document_number
-  validates_presence_of :document_type
-  validates_presence_of :year_of_birth
+  validates :document_number, presence: true
+  validates :document_type, presence: true
+  validates :year_of_birth, presence: true
 
   validate :allowed_age
   validate :residence_in_madrid
diff --git a/app/models/spending_proposal.rb b/app/models/spending_proposal.rb
index 223e9adfe..a37446117 100644
--- a/app/models/spending_proposal.rb
+++ b/app/models/spending_proposal.rb
@@ -15,7 +15,7 @@ class SpendingProposal < ActiveRecord::Base
   validates :title, presence: true
   validates :author, presence: true
   validates :description, presence: true
-  validates_presence_of :feasible_explanation, if: :feasible_explanation_required?
+  validates :feasible_explanation, presence: { if: :feasible_explanation_required? }
 
   validates :title, length: { in: 4..SpendingProposal.title_max_length }
   validates :description, length: { maximum: SpendingProposal.description_max_length }
diff --git a/app/models/verification/residence.rb b/app/models/verification/residence.rb
index bafff129b..e1b2f6363 100644
--- a/app/models/verification/residence.rb
+++ b/app/models/verification/residence.rb
@@ -7,10 +7,10 @@ class Verification::Residence
 
   before_validation :call_census_api
 
-  validates_presence_of :document_number
-  validates_presence_of :document_type
-  validates_presence_of :date_of_birth
-  validates_presence_of :postal_code
+  validates :document_number, presence: true
+  validates :document_type, presence: true
+  validates :date_of_birth, presence: true
+  validates :postal_code, presence: true
   validates :terms_of_service, acceptance: { allow_nil: false }
   validates :postal_code, length: { is: 5 }
 
diff --git a/app/models/verification/sms.rb b/app/models/verification/sms.rb
index 1a013f1d8..7c1a1bfa6 100644
--- a/app/models/verification/sms.rb
+++ b/app/models/verification/sms.rb
@@ -3,7 +3,7 @@ class Verification::Sms
 
   attr_accessor :user, :phone, :confirmation_code
 
-  validates_presence_of :phone
+  validates :phone, presence: true
   validates :phone, format: { with: /\A[\d \+]+\z/ }
   validate :uniqness_phone