diff --git a/docker/Dockerfile b/docker/Dockerfile
index 44e01f8..8acf37a 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.7.4-buster as builder
+FROM ruby:3.1.2-buster as builder
 
 ADD ./ /app/
 WORKDIR /app
@@ -8,7 +8,7 @@ RUN bundle install
 
 RUN bundle exec rake build -t -v
 
-FROM registry.access.redhat.com/ubi8/ruby-27
+FROM registry.access.redhat.com/ubi8/ruby-31
 
 ARG VERSION
 
@@ -50,4 +50,4 @@ RUN groupadd -r $FLUENT_USER && \
    chown -R $FLUENT_USER /fluentd && chgrp -R $FLUENT_USER /fluentd
 
 USER $FLUENT_USER
-CMD bundle exec fluentd -c /fluentd/etc/fluent.conf
\ No newline at end of file
+CMD bundle exec fluentd -c /fluentd/etc/fluent.conf