diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index bdfc3d8c..e4574924 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,7 +1,7 @@
 name: Build geosite.dat
 on:
   schedule:
-    - cron: "0 0 */3 * *"
+    - cron: "0 0 * * 3"
   push:
     branches:
       - master