diff --git a/Dockerfile b/Dockerfile
index 6425f20..87a0a23 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG RUBY_VERSION=3.1.2
+ARG RUBY_VERSION=3.19
 FROM ruby:${RUBY_VERSION}
 
 ARG TERRAFORM_VERSIONS=latest