diff --git a/Makefile b/Makefile
index dbcdf52..6be1007 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,7 @@ build: frontend
 
 .PHONY: frontend
 frontend: node_modules
+	git clean -fdx pkg/frontend/assets/
 	node ci/build.mjs
 
 node_modules:
diff --git a/ci/build.mjs b/ci/build.mjs
index e8ed7e7..c7fbc75 100644
--- a/ci/build.mjs
+++ b/ci/build.mjs
@@ -3,7 +3,7 @@ import { sassPlugin } from 'esbuild-sass-plugin'
 import vuePlugin from 'esbuild-plugin-vue3'
 
 esbuild.build({
-  assetNames: '[name]',
+  assetNames: '[name]-[hash]',
   bundle: true,
   define: {
     'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || 'dev'),