diff --git a/build/Dockerfile-nginx b/build/Dockerfile-nginx
index d3d3f6b..656f835 100644
--- a/build/Dockerfile-nginx
+++ b/build/Dockerfile-nginx
@@ -1,4 +1,4 @@
-FROM composer:1.9 as composer
+FROM composer:2 as composer
 
 ARG version=dev-master
 ARG http_version=dev-master
diff --git a/build/Dockerfile-ppm b/build/Dockerfile-ppm
index b7715bf..e9d2257 100644
--- a/build/Dockerfile-ppm
+++ b/build/Dockerfile-ppm
@@ -1,4 +1,4 @@
-FROM composer:1.9 as composer
+FROM composer:2 as composer
 
 ARG version=dev-master
 ARG http_version=dev-master
diff --git a/build/Dockerfile-standalone b/build/Dockerfile-standalone
index fd28cec..0989b48 100644
--- a/build/Dockerfile-standalone
+++ b/build/Dockerfile-standalone
@@ -1,4 +1,4 @@
-FROM composer:1.9 as composer
+FROM composer:2 as composer
 
 ARG version=dev-master
 ARG http_version=dev-master