diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 248e787b0..626ed4c60 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
     needs: Get-CI-Image-Tag
     strategy:
       matrix:
-        java: [11, 17]
+        java: [21]
         os: [ ubuntu-latest ]
     name: Build and Test security-analytics with JDK ${{ matrix.java }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
@@ -73,7 +73,7 @@ jobs:
       WORKING_DIR: ${{ matrix.working_directory }}.
     strategy:
       matrix:
-        java: [11, 17]
+        java: [21]
         os: [ windows-latest, macos-latest ]
         include:
           - os: windows-latest
diff --git a/.github/workflows/multi-node-test-workflow.yml b/.github/workflows/multi-node-test-workflow.yml
index 6bc731ae0..c0760c0b4 100644
--- a/.github/workflows/multi-node-test-workflow.yml
+++ b/.github/workflows/multi-node-test-workflow.yml
@@ -19,7 +19,7 @@ jobs:
     needs: Get-CI-Image-Tag
     strategy:
       matrix:
-        java: [ 11, 17, 21 ]
+        java: [ 21 ]
     # Job name
     name: Build and test Security Analytics on linux
     # This job runs on Linux
diff --git a/.github/workflows/security-test-workflow.yml b/.github/workflows/security-test-workflow.yml
index ffd91de13..f7b6fd09f 100644
--- a/.github/workflows/security-test-workflow.yml
+++ b/.github/workflows/security-test-workflow.yml
@@ -15,7 +15,7 @@ jobs:
   build:
     strategy:
       matrix:
-        java: [ 11, 17, 21 ]
+        java: [ 21 ]
     # Job name
     name: Build and test SecurityAnalytics
     # This job runs on Linux
diff --git a/src/main/java/org/opensearch/securityanalytics/correlation/index/codec/CorrelationCodecVersion.java b/src/main/java/org/opensearch/securityanalytics/correlation/index/codec/CorrelationCodecVersion.java
index c6ffd8551..7f4c84eb9 100644
--- a/src/main/java/org/opensearch/securityanalytics/correlation/index/codec/CorrelationCodecVersion.java
+++ b/src/main/java/org/opensearch/securityanalytics/correlation/index/codec/CorrelationCodecVersion.java
@@ -4,11 +4,13 @@
  */
 package org.opensearch.securityanalytics.correlation.index.codec;
 
+import org.apache.lucene.backward_codecs.lucene99.Lucene99Codec;
 import org.apache.lucene.codecs.Codec;
-import org.apache.lucene.codecs.lucene99.Lucene99Codec;
+import org.apache.lucene.codecs.lucene912.Lucene912Codec;
 import org.apache.lucene.backward_codecs.lucene95.Lucene95Codec;
 import org.apache.lucene.codecs.perfield.PerFieldKnnVectorsFormat;
 import org.opensearch.index.mapper.MapperService;
+import org.opensearch.securityanalytics.correlation.index.codec.correlation9120.CorrelationCodec9120;
 import org.opensearch.securityanalytics.correlation.index.codec.correlation950.CorrelationCodec950;
 import org.opensearch.securityanalytics.correlation.index.codec.correlation990.CorrelationCodec990;
 import org.opensearch.securityanalytics.correlation.index.codec.correlation990.PerFieldCorrelationVectorsFormat990;
@@ -32,9 +34,16 @@ public enum CorrelationCodecVersion {
             new PerFieldCorrelationVectorsFormat990(Optional.empty()),
             (userCodec, mapperService) -> new CorrelationCodec990(userCodec, new PerFieldCorrelationVectorsFormat990(Optional.of(mapperService))),
             CorrelationCodec990::new
+    ),
+    V_9_12_0(
+            "CorrelationCodec9120",
+            new Lucene912Codec(),
+            new PerFieldCorrelationVectorsFormat990(Optional.empty()),
+            (userCodec, mapperService) -> new CorrelationCodec9120(userCodec, new PerFieldCorrelationVectorsFormat990(Optional.of(mapperService))),
+            CorrelationCodec9120::new
     );
 
-    private static final CorrelationCodecVersion CURRENT = V_9_9_0;
+    private static final CorrelationCodecVersion CURRENT = V_9_12_0;
     private final String codecName;
     private final Codec defaultCodecDelegate;
     private final PerFieldKnnVectorsFormat perFieldKnnVectorsFormat;
diff --git a/src/main/java/org/opensearch/securityanalytics/correlation/index/codec/correlation9120/CorrelationCodec9120.java b/src/main/java/org/opensearch/securityanalytics/correlation/index/codec/correlation9120/CorrelationCodec9120.java
new file mode 100644
index 000000000..1aa6e6824
--- /dev/null
+++ b/src/main/java/org/opensearch/securityanalytics/correlation/index/codec/correlation9120/CorrelationCodec9120.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+package org.opensearch.securityanalytics.correlation.index.codec.correlation9120;
+
+import org.apache.lucene.codecs.Codec;
+import org.apache.lucene.codecs.FilterCodec;
+import org.apache.lucene.codecs.KnnVectorsFormat;
+import org.apache.lucene.codecs.perfield.PerFieldKnnVectorsFormat;
+import org.opensearch.securityanalytics.correlation.index.codec.CorrelationCodecVersion;
+
+public class CorrelationCodec9120 extends FilterCodec {
+    private static final CorrelationCodecVersion VERSION = CorrelationCodecVersion.V_9_12_0;
+    private final PerFieldKnnVectorsFormat perFieldCorrelationVectorsFormat;
+
+    public CorrelationCodec9120() {
+        this(VERSION.getDefaultCodecDelegate(), VERSION.getPerFieldCorrelationVectorsFormat());
+    }
+
+    public CorrelationCodec9120(Codec delegate, PerFieldKnnVectorsFormat perFieldCorrelationVectorsFormat) {
+        super(VERSION.getCodecName(), delegate);
+        this.perFieldCorrelationVectorsFormat = perFieldCorrelationVectorsFormat;
+    }
+
+    @Override
+    public KnnVectorsFormat knnVectorsFormat() {
+        return perFieldCorrelationVectorsFormat;
+    }
+}
\ No newline at end of file
diff --git a/src/main/resources/META-INF/services/org.apache.lucene.codecs.Codec b/src/main/resources/META-INF/services/org.apache.lucene.codecs.Codec
index e4a14ac56..f196c4a5a 100644
--- a/src/main/resources/META-INF/services/org.apache.lucene.codecs.Codec
+++ b/src/main/resources/META-INF/services/org.apache.lucene.codecs.Codec
@@ -1,2 +1,3 @@
 org.opensearch.securityanalytics.correlation.index.codec.correlation950.CorrelationCodec950
-org.opensearch.securityanalytics.correlation.index.codec.correlation990.CorrelationCodec990
\ No newline at end of file
+org.opensearch.securityanalytics.correlation.index.codec.correlation990.CorrelationCodec990
+org.opensearch.securityanalytics.correlation.index.codec.correlation9120.CorrelationCodec9120
\ No newline at end of file