diff --git a/Dockerfile b/Dockerfile
index 8d35b9135c..67b938d179 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ ARG ROOT=/usr/src/app/
 
 FROM node:24-alpine AS node-source
 
-FROM ruby:4.0.3-alpine AS build
+FROM ruby:4.0.4-alpine AS build
 ARG ROOT
 WORKDIR $ROOT
 
@@ -22,7 +22,7 @@ RUN bundle config set force_ruby_platform true
 COPY Gemfile* $ROOT
 RUN bundle install
 
-FROM ruby:4.0.3-alpine
+FROM ruby:4.0.4-alpine
 ARG ROOT
 WORKDIR $ROOT