diff --git a/Dockerfile b/Dockerfile
index c841982..b6979d7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.5-alpine
+FROM ruby:3.02-alpine
 
 RUN apk update && apk upgrade && \
     apk add --no-cache bash git openssh && \