diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index f49f370..7627031 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -5,6 +5,9 @@ on:
     branches: ["main"]
   pull_request:
     branches: ["main"]
+  schedule:
+    # * is a special character in YAML so you have to quote this string
+    - cron: "5 4 * * *"
 
 jobs:
   build: