diff --git a/.github/workflows/XmsInterp-CI.yaml b/.github/workflows/XmsInterp-CI.yaml
index 9896bdb3..b2b2d1e1 100644
--- a/.github/workflows/XmsInterp-CI.yaml
+++ b/.github/workflows/XmsInterp-CI.yaml
@@ -1,6 +1,10 @@
 name: XmsInterp-6
 
-on: [push, pull_request]
+on: 
+  push:
+  pull_request:
+  schedule:
+    - cron: "0 12 * * 1"
 
 jobs:
 # ----------------------------------------------------------------------------------------------