diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ff28e2ffc..91d0e3c9a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@ stages:
   - lint
 
 tests:
-  image: "ruby:2.7.7"
+  image: "ruby:3.0.6"
   stage: test
   services:
     - postgres:10.10
@@ -34,7 +34,7 @@ tests:
 # PRONTO_GITLAB_API_PRIVATE_TOKEN to your repository CI/CD settings
 # giving it the value of the Personal Access Token
 linters:
-  image: "ruby:2.7.7"
+  image: "ruby:3.0.6"
   stage: lint
   cache:
     key: consul
diff --git a/.ruby-version b/.ruby-version
index 1f7da99d4..818bd47ab 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.7
+3.0.6
diff --git a/Dockerfile b/Dockerfile
index 51385915f..dee67825a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.7.7-buster
+FROM ruby:3.0.6-buster
 
 ENV DEBIAN_FRONTEND noninteractive
 
diff --git a/Gemfile.lock b/Gemfile.lock
index b1360ecad..c3f5571f2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,11 @@
+GEM
+  remote: https://rails-assets.org/
+  specs:
+    rails-assets-leaflet (1.5.1)
+    rails-assets-markdown-it (9.0.1)
+
 GEM
   remote: https://rubygems.org/
-  remote: https://rails-assets.org/
   specs:
     actioncable (6.0.6.1)
       actionpack (= 6.0.6.1)
@@ -457,8 +462,6 @@ GEM
       bundler (>= 1.3.0)
       railties (= 6.0.6.1)
       sprockets-rails (>= 2.0.0)
-    rails-assets-leaflet (1.5.1)
-    rails-assets-markdown-it (9.0.1)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
@@ -768,4 +771,4 @@ DEPENDENCIES
   wkhtmltopdf-binary (~> 0.12.6)
 
 BUNDLED WITH
-   2.1.4
+   2.2.33
diff --git a/README.md b/README.md
index 538dad4f9..129822757 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ 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 2.7.7, CMake, pkg-config, shared-mime-info, Node.js and PostgreSQL (>=9.5).
+Prerequisites: install git, Ruby 3.0.6, CMake, pkg-config, shared-mime-info, Node.js and PostgreSQL (>=9.5).
 
 ```bash
 git clone https://github.com/consul/consul.git
diff --git a/README_ES.md b/README_ES.md
index 5b38cd251..6035c83a6 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 2.7.7, CMake, pkg-config, shared-mime-info, Node.js y PostgreSQL (9.5 o superior).
+Prerequisitos: tener instalado git, Ruby 3.0.6, CMake, pkg-config, shared-mime-info, Node.js y PostgreSQL (9.5 o superior).
 
 ```bash
 git clone https://github.com/consul/consul.git