diff --git a/jobs/Deploy_CHM_UAT_136/config.xml b/jobs/Deploy_CHM_UAT_136/config.xml
index a3d333188162a0be3973ad385fd05bcf1f5d34ce..c0856634a34ecf560633aec2f4f5ac0bcd82a510 100644
--- a/jobs/Deploy_CHM_UAT_136/config.xml
+++ b/jobs/Deploy_CHM_UAT_136/config.xml
@@ -4,6 +4,14 @@
   <description></description>
   <keepDependencies>false</keepDependencies>
   <properties>
+    <jenkins.model.BuildDiscarderProperty>
+      <strategy class="hudson.tasks.LogRotator">
+        <daysToKeep>-1</daysToKeep>
+        <numToKeep>5</numToKeep>
+        <artifactDaysToKeep>-1</artifactDaysToKeep>
+        <artifactNumToKeep>-1</artifactNumToKeep>
+      </strategy>
+    </jenkins.model.BuildDiscarderProperty>
     <com.dabsquared.gitlabjenkins.connection.GitLabConnectionProperty plugin="gitlab-plugin@1.5.11">
       <gitLabConnection>ylhealth</gitLabConnection>
     </com.dabsquared.gitlabjenkins.connection.GitLabConnectionProperty>
@@ -15,19 +23,11 @@
 master
 release/1.43GA
 hotfix/1.42.3GA</description>
-          <defaultValue>release/1.50GA</defaultValue>
+          <defaultValue>release/1.51GA</defaultValue>
           <trim>false</trim>
         </hudson.plugins.global__variable__string__parameter.GlobalVariableStringParameterDefinition>
       </parameterDefinitions>
     </hudson.model.ParametersDefinitionProperty>
-    <jenkins.model.BuildDiscarderProperty>
-      <strategy class="hudson.tasks.LogRotator">
-        <daysToKeep>-1</daysToKeep>
-        <numToKeep>5</numToKeep>
-        <artifactDaysToKeep>-1</artifactDaysToKeep>
-        <artifactNumToKeep>-1</artifactNumToKeep>
-      </strategy>
-    </jenkins.model.BuildDiscarderProperty>
   </properties>
   <scm class="hudson.plugins.git.GitSCM" plugin="git@3.9.3">
     <configVersion>2</configVersion>
@@ -99,7 +99,7 @@ hotfix/1.42.3GA</description>
         </hudson.plugins.parameterizedtrigger.BuildTriggerConfig>
       </configs>
     </hudson.plugins.parameterizedtrigger.BuildTrigger>
-    <jenkins.plugins.slack.SlackNotifier plugin="slack@2.18">
+    <jenkins.plugins.slack.SlackNotifier plugin="slack@2.19">
       <baseUrl></baseUrl>
       <teamDomain></teamDomain>
       <authToken></authToken>