diff --git a/Dockerfile b/Dockerfile
index df8e229..41dd764 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,11 +2,11 @@ FROM heroku/heroku:18-build
 
 # Which versions?
 ENV RUBY_MAJOR_VERSION 2.7.0
-ENV RUBY_VERSION 2.7.0
+ENV RUBY_VERSION 2.7.1
 # https://devcenter.heroku.com/articles/ruby-support#libraries
 ENV BUNDLER_VERSION 2.0.2
-ENV NODE_VERSION 12.14.1
-ENV YARN_VERSION 1.21.1
+ENV NODE_VERSION 14.2.0
+ENV YARN_VERSION 1.22.4
 
 ENV LC_ALL en_US.UTF-8
 
diff --git a/README.md b/README.md
index faa5204..d17c88b 100644
--- a/README.md
+++ b/README.md
@@ -5,9 +5,9 @@ Usage: `FROM nerdsandcompany/docker-heroku-rails`
 # Specifications
 
 * Heroku 18
-* Ruby 2.7.0
+* Ruby 2.7.1
 * Bundler 2.0.2
-* Node 12.14.1
-* Yarn 1.21.1
+* Node 14.2.0
+* Yarn 1.22.4
 * Chrome
 * ChromeDriver