diff --git a/Dockerfile b/Dockerfile
index 5b63a1b4..21d7a4fe 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM composer:2.3 as composer
+FROM composer:2.8 as composer
 
 COPY ./composer.json /tmp/src1/composer.json
 COPY ./composer.lock /tmp/src1/composer.lock