diff --git a/.github/workflows/backwards_compatibility_tests_workflow.yml b/.github/workflows/backwards_compatibility_tests_workflow.yml
index b7ce283d1..ad90a79f3 100644
--- a/.github/workflows/backwards_compatibility_tests_workflow.yml
+++ b/.github/workflows/backwards_compatibility_tests_workflow.yml
@@ -14,8 +14,8 @@ jobs:
     strategy:
       matrix:
         java: [ 11, 17 ]
-        bwc_version : [ "1.1.0", "1.2.4", "1.3.8", "2.0.1", "2.1.0", "2.2.1", "2.3.0", "2.4.1", "2.5.0", "2.6.0", "2.7.0", "2.8.0", "2.9.0", "2.10.0" ]
-        opensearch_version : [ "2.11.0-SNAPSHOT" ]
+        bwc_version : [ "1.1.0", "1.2.4", "1.3.8", "2.0.1", "2.1.0", "2.2.1", "2.3.0", "2.4.1", "2.5.0", "2.6.0", "2.7.0", "2.8.0", "2.9.0", "2.10.0", "2.11.0" ]
+        opensearch_version : [ "2.12.0-SNAPSHOT" ]
 
     name: k-NN Restart-Upgrade BWC Tests
     runs-on: ubuntu-latest
@@ -46,8 +46,8 @@ jobs:
     strategy:
       matrix:
         java: [ 11, 17 ]
-        bwc_version: [ "1.3.8", "2.0.1", "2.1.0", "2.2.1", "2.3.0", "2.4.1", "2.5.0", "2.6.0", "2.7.0", "2.8.0", "2.9.0", "2.10.0"]
-        opensearch_version: [ "2.11.0-SNAPSHOT" ]
+        bwc_version: [ "1.3.8", "2.0.1", "2.1.0", "2.2.1", "2.3.0", "2.4.1", "2.5.0", "2.6.0", "2.7.0", "2.8.0", "2.9.0", "2.10.0", "2.11.0"]
+        opensearch_version: [ "2.12.0-SNAPSHOT" ]
 
     name: k-NN Rolling-Upgrade BWC Tests
     runs-on: ubuntu-latest
diff --git a/build.gradle b/build.gradle
index 8c8db8340..f3dcff3e3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,7 +10,7 @@ buildscript {
     ext {
         // build.version_qualifier parameter applies to knn plugin artifacts only. OpenSearch version must be set
         // explicitly as 'opensearch.version' property, for instance opensearch.version=2.0.0-rc1-SNAPSHOT
-        opensearch_version = System.getProperty("opensearch.version", "2.11.0-SNAPSHOT")
+        opensearch_version = System.getProperty("opensearch.version", "2.12.0-SNAPSHOT")
         version_qualifier = System.getProperty("build.version_qualifier", "")
         opensearch_group = "org.opensearch"
     }
diff --git a/src/main/java/org/opensearch/knn/index/mapper/LuceneFieldMapper.java b/src/main/java/org/opensearch/knn/index/mapper/LuceneFieldMapper.java
index 94e42ee7c..b28b93028 100644
--- a/src/main/java/org/opensearch/knn/index/mapper/LuceneFieldMapper.java
+++ b/src/main/java/org/opensearch/knn/index/mapper/LuceneFieldMapper.java
@@ -23,7 +23,7 @@
 import java.util.Locale;
 import java.util.Optional;
 
-import static org.apache.lucene.index.VectorValues.MAX_DIMENSIONS;
+import org.apache.lucene.codecs.KnnVectorsFormat;
 import static org.opensearch.knn.common.KNNConstants.VECTOR_DATA_TYPE_FIELD;
 import static org.opensearch.knn.index.mapper.KNNVectorFieldMapperUtil.addStoredFieldForVectorField;
 import static org.opensearch.knn.index.mapper.KNNVectorFieldMapperUtil.buildDocValuesFieldType;
@@ -33,7 +33,7 @@
  */
 public class LuceneFieldMapper extends KNNVectorFieldMapper {
 
-    private static final int LUCENE_MAX_DIMENSION = MAX_DIMENSIONS;
+    private static final int LUCENE_MAX_DIMENSION = KnnVectorsFormat.DEFAULT_MAX_DIMENSIONS;
 
     /** FieldType used for initializing VectorField, which is used for creating binary doc values. **/
     private final FieldType vectorFieldType;
diff --git a/src/main/java/org/opensearch/knn/index/util/KNNEngine.java b/src/main/java/org/opensearch/knn/index/util/KNNEngine.java
index 776ea5366..197bb87f3 100644
--- a/src/main/java/org/opensearch/knn/index/util/KNNEngine.java
+++ b/src/main/java/org/opensearch/knn/index/util/KNNEngine.java
@@ -6,7 +6,7 @@
 package org.opensearch.knn.index.util;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.lucene.index.VectorValues;
+import org.apache.lucene.codecs.KnnVectorsFormat;
 import org.opensearch.common.ValidationException;
 import org.opensearch.knn.index.KNNMethod;
 import org.opensearch.knn.index.KNNMethodContext;
@@ -40,7 +40,7 @@ public enum KNNEngine implements KNNLibrary {
         KNNEngine.FAISS,
         16_000,
         KNNEngine.LUCENE,
-        VectorValues.MAX_DIMENSIONS
+        KnnVectorsFormat.DEFAULT_MAX_DIMENSIONS
     );
 
     /**