diff --git a/Dockerfile b/Dockerfile
index 390c9cf..1a4d3e0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.7.2-alpine
+FROM ruby:3.0.1-alpine
 
 RUN apk --no-cache add mtr libstdc++