diff --git a/jobs/CHM_Analysis/config.xml b/jobs/CHM_Analysis/config.xml
index 7dd147f32256b5621eae0d56329012d221bbd29e..91f54b91b6801524386c807f38d869209adc00ab 100644
--- a/jobs/CHM_Analysis/config.xml
+++ b/jobs/CHM_Analysis/config.xml
@@ -41,7 +41,11 @@
   <disabled>false</disabled>
   <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
   <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
-  <triggers/>
+  <triggers>
+    <hudson.triggers.TimerTrigger>
+      <spec>H H(8-22)/2 * * 1-5</spec>
+    </hudson.triggers.TimerTrigger>
+  </triggers>
   <concurrentBuild>false</concurrentBuild>
   <rootModule>
     <groupId>org.ylhealth.ym</groupId>