diff --git a/build.gradle b/build.gradle
index 6be75216d9..bb86b24cfb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -50,7 +50,7 @@ plugins {
     id 'idea'
     id 'jacoco'
     id 'maven-publish'
-    id 'com.diffplug.spotless' version '6.16.0'
+    id 'com.diffplug.spotless' version '6.19.0'
     id 'checkstyle'
     id 'com.netflix.nebula.ospackage'  version "11.0.0"
     id "org.gradle.test-retry" version "1.5.2"
diff --git a/bwc-test/build.gradle b/bwc-test/build.gradle
index 81732df698..a24a8815c9 100644
--- a/bwc-test/build.gradle
+++ b/bwc-test/build.gradle
@@ -73,7 +73,7 @@ dependencies {
     testImplementation "org.opensearch.test:framework:${opensearch_version}"
 }
 
-String bwcVersion = "2.8.0.0";
+String bwcVersion = "2.6.0.0";
 String baseName = "securityBwcCluster"
 String bwcFilePath = "src/test/resources/"
 String projectVersion = "2.9.0.0"
@@ -82,7 +82,7 @@ String projectVersion = "2.9.0.0"
     testClusters {
         "${baseName}$i" {
             testDistribution = "ARCHIVE"
-            versions = ["2.8.0","2.9.0"]
+            versions = ["2.6.0","2.9.0"]
             numberOfNodes = 3
             plugin(provider(new Callable<RegularFile>() {
                 @Override