diff --git a/.github/workflows/build-images.yml b/.github/workflows/build-images.yml
index 76cfa5b..0ffd664 100644
--- a/.github/workflows/build-images.yml
+++ b/.github/workflows/build-images.yml
@@ -2,9 +2,10 @@ name: Daily build
 
 on:
   schedule:
-    - cron: 0 0 * * *
+    - cron: 0 */6 * * *
   push:
   pull_request:
+  workflow_dispatch:
 
 jobs:
   act-base: