diff --git a/test/Dockerfile.distro b/test/Dockerfile.distro
index 1c966b29f5..7e7be9626a 100644
--- a/test/Dockerfile.distro
+++ b/test/Dockerfile.distro
@@ -181,7 +181,7 @@ FROM build AS test-php
 # renovate: datasource=github-releases packageName=containerbase/php-prebuild
 RUN install-tool php 8.5.2
 # renovate: datasource=github-releases packageName=containerbase/composer-prebuild
-RUN install-tool composer 2.9.3
+RUN install-tool composer 2.9.4
 
 #--------------------------------------
 # Image: test-python
diff --git a/test/php/Dockerfile b/test/php/Dockerfile
index 3a7f304460..f18c1be81d 100644
--- a/test/php/Dockerfile
+++ b/test/php/Dockerfile
@@ -47,7 +47,7 @@ RUN install-tool php 8.5.2
 
 
 # renovate: datasource=github-releases packageName=containerbase/composer-prebuild
-RUN install-tool composer 2.9.3
+RUN install-tool composer 2.9.4
 
 # test with latest version
 RUN install-tool composer latest
@@ -91,7 +91,7 @@ RUN install-tool php
 RUN install-tool composer
 
 # renovate: datasource=github-releases packageName=containerbase/composer-prebuild
-RUN install-tool composer 2.9.3
+RUN install-tool composer 2.9.4
 
 
 RUN set -ex; \
diff --git a/test/php/Dockerfile.arm64 b/test/php/Dockerfile.arm64
index ee3a3da702..2d1baeed3d 100644
--- a/test/php/Dockerfile.arm64
+++ b/test/php/Dockerfile.arm64
@@ -45,7 +45,7 @@ RUN install-tool php 8.5.2
 FROM test-php AS test-composer
 
 # renovate: datasource=github-releases packageName=containerbase/composer-prebuild
-RUN install-tool composer 2.9.3
+RUN install-tool composer 2.9.4
 
 #--------------------------------------
 # Image: final