diff --git a/jobs/CHMB_Analysis/config.xml b/jobs/CHMB_Analysis/config.xml
index 6649bfc58dfc081e1244a367e3ad7b9e3d7eb2dc..6da666b6b5e81dea80f6bcd32f36b4a83ef89721 100644
--- a/jobs/CHMB_Analysis/config.xml
+++ b/jobs/CHMB_Analysis/config.xml
@@ -38,7 +38,12 @@
   <disabled>false</disabled>
   <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
   <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
-  <triggers/>
+  <triggers>
+    <hudson.triggers.SCMTrigger>
+      <spec>2 * * * *</spec>
+      <ignorePostCommitHooks>false</ignorePostCommitHooks>
+    </hudson.triggers.SCMTrigger>
+  </triggers>
   <concurrentBuild>false</concurrentBuild>
   <rootModule>
     <groupId>org.ylhealth.ym.hrb.backend</groupId>