diff --git a/Dockerfile b/Dockerfile
index cc512bf..e34c1c1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # renovate: datasource=github-releases depName=containerbase/ruby-prebuild versioning=ruby
-ARG RUBY_VERSION=2.7.5
+ARG RUBY_VERSION=3.1.0
 
 FROM renovate/buildpack:6@sha256:5e4220eb63a930eac6eb772d92aec0e72ecb3091dccee95c2a28b7dde14d6e24