diff --git a/.ruby-version b/.ruby-version
index ecd7ee50c..338a5b5d8 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.5.8
+2.6.6
diff --git a/README.md b/README.md
index 83bfa5ffa..450533f11 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ You can access the main website of the project at [http://consulproject.org](htt
 
 **NOTE**: For more detailed instructions check the [docs](https://docs.consulproject.org)
 
-Prerequisites: install git, Ruby 2.5.8, `bundler` gem, Node.js and PostgreSQL (>=9.4).
+Prerequisites: install git, Ruby 2.6.6, Node.js and PostgreSQL (>=9.4).
 
 ```bash
 git clone https://github.com/consul/consul.git
diff --git a/README_ES.md b/README_ES.md
index 0a7005e27..4dc398f6f 100644
--- a/README_ES.md
+++ b/README_ES.md
@@ -36,7 +36,7 @@ Puedes acceder a la página principal del proyecto en [http://consulproject.org]
 
 **NOTA**: para unas instrucciones más detalladas consulta la [documentación](https://docs.consulproject.org)
 
-Prerequisitos: tener instalado git, Ruby 2.5.8, la gema `bundler`, Node.js y PostgreSQL (9.4 o superior).
+Prerequisitos: tener instalado git, Ruby 2.6.6, Node.js y PostgreSQL (9.4 o superior).
 
 ```bash
 git clone https://github.com/consul/consul.git
diff --git a/app/controllers/concerns/commentable_actions.rb b/app/controllers/concerns/commentable_actions.rb
index 86f47b4d6..8b2a6d3bc 100644
--- a/app/controllers/concerns/commentable_actions.rb
+++ b/app/controllers/concerns/commentable_actions.rb
@@ -9,7 +9,7 @@ module CommentableActions
 
     @resources = @current_order == "recommendations" && current_user.present? ? @resources.recommendations(current_user) : @resources.for_render
     @resources = @resources.search(@search_terms) if @search_terms.present?
-    @resources = @advanced_search_terms.present? ? @resources.filter(@advanced_search_terms) : @resources
+    @resources = @advanced_search_terms.present? ? @resources.filter_by(@advanced_search_terms) : @resources
 
     @resources = @resources.page(params[:page]).send("sort_by_#{@current_order}")
 
diff --git a/app/models/budget/investment.rb b/app/models/budget/investment.rb
index 4adf23556..8258bcc6b 100644
--- a/app/models/budget/investment.rb
+++ b/app/models/budget/investment.rb
@@ -357,7 +357,7 @@ class Budget
       investments = investments.send(current_filter)             if current_filter.present?
       investments = investments.by_heading(params[:heading_id])  if params[:heading_id].present?
       investments = investments.search(params[:search])          if params[:search].present?
-      investments = investments.filter(params[:advanced_search]) if params[:advanced_search].present?
+      investments = investments.filter_by(params[:advanced_search]) if params[:advanced_search].present?
       investments
     end
 
diff --git a/app/models/concerns/filterable.rb b/app/models/concerns/filterable.rb
index e25471c23..31d64ae89 100644
--- a/app/models/concerns/filterable.rb
+++ b/app/models/concerns/filterable.rb
@@ -7,7 +7,7 @@ module Filterable
   end
 
   class_methods do
-    def filter(params)
+    def filter_by(params)
       resources = all
       params.each do |filter, value|
         if allowed_filter?(filter, value)
diff --git a/config/deploy.rb b/config/deploy.rb
index febb23f50..0da9af9c5 100644
--- a/config/deploy.rb
+++ b/config/deploy.rb
@@ -50,7 +50,6 @@ namespace :deploy do
 
   after :updating, "rvm1:install:rvm"
   after :updating, "rvm1:install:ruby"
-  after :updating, "install_bundler_gem"
 
   after "deploy:migrate", "add_new_settings"
 
@@ -70,14 +69,6 @@ namespace :deploy do
   end
 end
 
-task :install_bundler_gem do
-  on roles(:app) do
-    within release_path do
-      execute :rvm, fetch(:rvm1_ruby_version), "do", "gem install bundler --version 1.17.1"
-    end
-  end
-end
-
 task :refresh_sitemap do
   on roles(:app) do
     within release_path do