diff --git a/.github/workflows/send-email.yaml b/.github/workflows/send-email.yaml
index 2fb5918..1a1aec3 100644
--- a/.github/workflows/send-email.yaml
+++ b/.github/workflows/send-email.yaml
@@ -2,7 +2,7 @@ name: Send email
 
 on:
   schedule:
-    - cron: '0 4 * * *'
+    - cron: '*/15 * * * *'
   workflow_dispatch:
 
 jobs: