diff --git a/linux/Dockerfile b/linux/Dockerfile
index e18982e9..d1da3764 100644
--- a/linux/Dockerfile
+++ b/linux/Dockerfile
@@ -28,7 +28,7 @@ RUN install-tool dotnet 10.0.301
 RUN install-tool node 24.18.0
 
 # renovate: datasource=npm
-RUN install-tool pnpm 11.8.0
+RUN install-tool pnpm 11.9.0
 
 # renovate: datasource=github-releases packageName=docker/compose
 RUN install-tool docker-compose v5.2.0
diff --git a/windows/Dockerfile b/windows/Dockerfile
index 99136995..d681eca4 100644
--- a/windows/Dockerfile
+++ b/windows/Dockerfile
@@ -22,7 +22,7 @@ RUN install-tool powershell v7.6.3
 RUN install-tool node 24.18.0
 
 # renovate: datasource=npm
-RUN install-npm pnpm 11.8.0
+RUN install-npm pnpm 11.9.0
 
 # renovate: datasource=java-version packageName=java-jre?os=windows&architecture=x64
 RUN install-tool java 21.0.11+10.0.LTS