diff --git a/tests/apps/dockerfile-entrypoint/Dockerfile b/tests/apps/dockerfile-entrypoint/Dockerfile
index b45a7c06a..65f928370 100644
--- a/tests/apps/dockerfile-entrypoint/Dockerfile
+++ b/tests/apps/dockerfile-entrypoint/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:3.4.8
+FROM ruby:4.0.0
 
 RUN mkdir /app
 WORKDIR /app