diff --git a/cmd/ui/main.go b/cmd/ui/main.go
index e564c5f..140c53a 100644
--- a/cmd/ui/main.go
+++ b/cmd/ui/main.go
@@ -50,6 +50,8 @@ func Run(ctx context.Context, args []string) error {
 		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			if strings.HasPrefix(r.URL.Path, "/media/") {
 				http.StripPrefix("/media/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+					w.Header().Set("Cache-Control", "private, max-age=31536000")
+					w.Header().Add("Cache-Control", "immutable")
 					http.FileServer(http.Dir(*d)).ServeHTTP(w, r)
 				})).ServeHTTP(w, r)
 				return