diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b23c7fb9b..ff28e2ffc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@ stages:
   - lint
 
 tests:
-  image: "ruby:2.7.6"
+  image: "ruby:2.7.7"
   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:2.7.6"
+  image: "ruby:2.7.7"
   stage: lint
   cache:
     key: consul
diff --git a/.ruby-version b/.ruby-version
index 49cdd668e..1f7da99d4 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.6
+2.7.7
diff --git a/Dockerfile b/Dockerfile
index 79284f11c..51385915f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.7.6-buster
+FROM ruby:2.7.7-buster
 
 ENV DEBIAN_FRONTEND noninteractive
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 6792b9b4c..250d96496 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -440,7 +440,7 @@ GEM
     parallel (1.22.1)
     paranoia (2.6.0)
       activerecord (>= 5.1, < 7.1)
-    parser (3.1.2.1)
+    parser (3.1.3.0)
       ast (~> 2.4.1)
     pg (1.4.3)
     pg_search (2.3.6)
diff --git a/README.md b/README.md
index 7798d7927..538dad4f9 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 2.7.6, CMake, pkg-config, shared-mime-info, Node.js and PostgreSQL (>=9.5).
+Prerequisites: install git, Ruby 2.7.7, 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 6dbbc5a93..5b38cd251 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 2.7.6, CMake, pkg-config, shared-mime-info, Node.js y PostgreSQL (9.5 o superior).
+Prerequisitos: tener instalado git, Ruby 2.7.7, CMake, pkg-config, shared-mime-info, Node.js y PostgreSQL (9.5 o superior).
 
 ```bash
 git clone https://github.com/consul/consul.git