diff --git a/.ruby-version b/.ruby-version
index 3f5987a5c..ecd7ee50c 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.4.9
+2.5.8
diff --git a/README.md b/README.md
index e2c87c9f6..2bb879ce6 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 2.4.9, `bundler` gem, Node.js and PostgreSQL (>=9.4).
+Prerequisites: install git, Ruby 2.5.8, `bundler` gem, 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 107ee3e95..c75786bb9 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 2.4.9, la gema `bundler`, Node.js y PostgreSQL (9.4 o superior).
+Prerequisitos: tener instalado git, Ruby 2.5.8, la gema `bundler`, Node.js y PostgreSQL (9.4 o superior).
 
 ```bash
 git clone https://github.com/consul/consul.git