Use Ruby 2.7.1 in Dockerfile.alpine

This matches the version used in the main Dockerfile and specified in `.ruby-version`
github · Feb 9, 2021 · 87e0a7e · 87e0a7e
1 parent bd3d215
commit 87e0a7e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Dockerfile.alpine b/Dockerfile.alpine
@@ -1,4 +1,4 @@
-FROM ruby:alpine
+FROM ruby:2.7.1-alpine
 
 RUN apk update && apk add --no-cache \
   git