diff --git a/.github/workflows/sync-openapi.yml b/.github/workflows/sync-openapi.yml
index 74540c84..fca4be68 100644
--- a/.github/workflows/sync-openapi.yml
+++ b/.github/workflows/sync-openapi.yml
@@ -1,13 +1,13 @@
 name: Sync OpenAPI client
 
-# Daily: pull the latest OpenAPI spec, regenerate the Go REST client with
+# Weekdays: pull the latest OpenAPI spec, regenerate the Go REST client with
 # oapi-codegen, and open a brand-new PR only when the regenerated output differs
 # from what's committed. Mirrors the automation in massive-com/client-jvm and
 # massive-com/client-js (adapted to the Go toolchain).
 
 on:
   schedule:
-    - cron: '0 15 * * *'   # 07:00 America/Vancouver
+    - cron: '0 15 * * 1-5'   # 07:00 America/Vancouver, Mon–Fri
   workflow_dispatch:
 
 permissions: