diff --git a/Dockerfile b/Dockerfile
index 328e69d..d0b8312 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -37,11 +37,14 @@ ENV PATH "$PATH:$RBENV_ROOT/shims"
 RUN mkdir -p "$RBENV_ROOT"/plugins
 RUN git clone https://github.com/rbenv/ruby-build.git "$RBENV_ROOT"/plugins/ruby-build
 
-# Install default ruby env
+# Install ruby envs
 RUN echo “install: --no-document” > ~/.gemrc
 ENV RUBY_CONFIGURE_OPTS=--disable-install-doc
-RUN rbenv install 2.7.0
-RUN rbenv global 2.7.0
+RUN rbenv install 2.7.1
+RUN rbenv install 2.6.6
+
+# Setup default ruby env
+RUN rbenv global 2.7.1
 RUN gem install bundler:2.1.4
 
 # Install Google Cloud CLI
diff --git a/README.md b/README.md
index dbffb73..91790d3 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Docker allows you to provide a replicable environment, which does not change wit
 It should work out of the box on any CI/CD service providing docker support.
 The image is providing standard tools to build and test Android application:
 * Android SDK (optionally Android NDK)
-* Default Ruby env through [rbenv](https://github.com/rbenv/rbenv) (for [Fastlane](https://fastlane.tools/) for instance)
+* [Fastlane first class support](https://github.com/faberNovel/docker-android#fastlane-first-class-support)
 * Java JDK
 * Google Cloud CLI, to support [Firebase Test Lab](https://firebase.google.com/docs/test-lab)
 
@@ -25,6 +25,7 @@ The image is providing standard tools to build and test Android application:
 
 ## Fastlane first-class support
 Images are built to have first class support for Fastlane.
+Ruby versions in [`normal maintenance`](https://www.ruby-lang.org/en/downloads/branches/) mode are installed using [rbenv](https://github.com/rbenv/rbenv).
 If you are using a Fastlane plugin which requires a native library: 
 - Install it using `apt-get update && apt-get -y install <lib>` in your
 CI workflow.