diff --git a/Dockerfile b/Dockerfile
index 308e370c..c51049ec 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.7
+FROM ruby:3
 WORKDIR /opt/app
 COPY Gemfile /opt/app/
 COPY Gemfile.lock /opt/app/