diff --git a/Dockerfile-bundle-base b/Dockerfile-bundle-base
index 89f3ca8..d0ad200 100644
--- a/Dockerfile-bundle-base
+++ b/Dockerfile-bundle-base
@@ -1,4 +1,4 @@
-FROM ruby:2.2.4-alpine
+FROM ruby:2.7.8-alpine
 
 # Installation path
 ENV HOME=/app