diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index 034271eb..266c8076 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -1,4 +1,4 @@
-FROM php:%%PHP_VERSION%%-%%VARIANT%%3.7
+FROM php:%%PHP_VERSION%%-%%VARIANT%%3.8
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \