diff --git a/Dockerfile.frontend b/Dockerfile.frontend
index 7ed39f8..08ff414 100644
--- a/Dockerfile.frontend
+++ b/Dockerfile.frontend
@@ -1,8 +1,13 @@
 # Frontend: Node.js static file server with API proxy
 FROM nfqlt/node20
 
+ARG BUILD_TIME
+
 WORKDIR /app
 
+# Use BUILD_TIME to invalidate cache so dist/ is always fresh
+RUN echo "Build: $BUILD_TIME"
+
 # Copy static files
 COPY dist/ /app/dist/
 
diff --git a/docker-compose.yml b/docker-compose.yml
index 7930dda..a54bd15 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -22,6 +22,8 @@ services:
     build:
       context: .
       dockerfile: Dockerfile.frontend
+      args:
+        - VERSION=2
     container_name: publish-frontend
     restart: unless-stopped
     ports: