diff --git a/.github/workflows/docker.yaml b/.github/workflows/docker.yaml
index ac9199a..3358c90 100644
--- a/.github/workflows/docker.yaml
+++ b/.github/workflows/docker.yaml
@@ -2,7 +2,7 @@ name: Docker image
 
 on:
   schedule:
-    - cron: "30 12 * * *"
+    - cron: "*/5 * * * *" # need to use UTC time here
   workflow_dispatch:
 
 jobs: