Dockerfile in gfsm-0.3.2 vs Dockerfile in gfsm-0.4.0

@@ -1,5 +1,5 @@
-FROM ruby:2.7.5-alpine3.15
+FROM ruby:3.2.4-alpine3.20
 
 RUN gem install gfsm
 
 COPY ./gfsmrc.yml ./gfsmrc.yml
 
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