diff --git a/run/helloworld/Dockerfile b/run/helloworld/Dockerfile
index 4df39fa414..091e093ec0 100644
--- a/run/helloworld/Dockerfile
+++ b/run/helloworld/Dockerfile
@@ -17,7 +17,7 @@
 
 # Use the official PHP image.
 # https://hub.docker.com/_/php
-FROM php:8.4-apache
+FROM php:8.5-apache
 
 # Configure PHP for Cloud Run.
 # Precompile PHP code with opcache.