diff --git a/README.md b/README.md
index 0e9dfd0eb..696635fb2 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ Run the app locally:
 bin/rails s
 ```
 
-Prerequisites for testing: install PhantomJS >= 2.1.1
+Prerequisites for testing: install ChromeDriver >= 2.33
 
 Run the tests with:
 
diff --git a/README_ES.md b/README_ES.md
index 47277da47..571c6b2f6 100644
--- a/README_ES.md
+++ b/README_ES.md
@@ -47,7 +47,7 @@ Para ejecutar la aplicación en local:
 bin/rails s
 ```
 
-Prerequisitos para los tests: tener instalado PhantomJS >= 2.1.1
+Prerequisitos para los tests: tener instalado ChromeDriver >= 2.33
 
 Para ejecutar los tests: