diff --git a/readme.md b/readme.md
index 2cd5189..9bdb3c8 100644
--- a/readme.md
+++ b/readme.md
@@ -7,10 +7,10 @@ Images can be found on [docker hub](https://hub.docker.com/repository/docker/dan
 #### Supported versions
 
 * php 8.1.7
-  * composer 2.3.7
+  * composer 2.3.9
   * xdebug 3.1.3
 * php 8.0.20
-  * composer 2.3.7
+  * composer 2.3.9
   * xdebug 3.1.3
 * php 7.4.30 (latest)
   * composer 1.10.24
diff --git a/v8.0/Dockerfile b/v8.0/Dockerfile
index 70e9937..26b7a18 100644
--- a/v8.0/Dockerfile
+++ b/v8.0/Dockerfile
@@ -1,6 +1,7 @@
 FROM php:8.0.20-alpine
 
 ARG PHP_XDEBUG_VERSION=3.1.3
+ARG COMPOSER_VERSION=2.3.9
 
 RUN apk update && apk add --no-cache $PHPIZE_DEPS \
     && apk add --no-cache zlib-dev gd-dev libwebp-dev freetype-dev libpng-dev libjpeg-turbo-dev \
@@ -23,7 +24,6 @@ RUN apk update && apk add --no-cache $PHPIZE_DEPS \
 
 
 # Install composer
-ARG COMPOSER_VERSION=2.3.7
 RUN curl -sS https://getcomposer.org/installer | php -- \
         --filename=composer \
         --version=${COMPOSER_VERSION} \
diff --git a/v8.1/Dockerfile b/v8.1/Dockerfile
index 7ea980f..54509a9 100644
--- a/v8.1/Dockerfile
+++ b/v8.1/Dockerfile
@@ -1,6 +1,7 @@
 FROM php:8.1.7-alpine
 
 ARG PHP_XDEBUG_VERSION=3.1.3
+ARG COMPOSER_VERSION=2.3.9
 
 RUN apk update && apk add --no-cache $PHPIZE_DEPS \
     && apk add --no-cache zlib-dev gd-dev libwebp-dev freetype-dev libpng-dev libjpeg-turbo-dev \
@@ -21,7 +22,6 @@ RUN apk update && apk add --no-cache $PHPIZE_DEPS \
         zlib-dev libwebp-dev freetype-dev libpng-dev libjpeg-turbo-dev openssl-dev
 
 # Install composer
-ARG COMPOSER_VERSION=2.3.7
 RUN curl -sS https://getcomposer.org/installer | php -- \
         --filename=composer \
         --version=${COMPOSER_VERSION} \