diff --git a/Dockerfile b/Dockerfile
index 5d18427..99caf65 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,8 @@
 # syntax=docker/dockerfile:1
 
-FROM ruby:3.2.2-slim
+ARG RUBY_VERSION=3.2.2
+
+FROM ruby:${RUBY_VERSION}-slim
 
 # OS Level Dependencies
 RUN apt-get update -qq && apt-get install -yq --no-install-recommends \