diff --git a/xtable-core/src/main/java/org/apache/xtable/delta/DeltaConversionTarget.java b/xtable-core/src/main/java/org/apache/xtable/delta/DeltaConversionTarget.java
index b34fa4491..c29f9bb47 100644
--- a/xtable-core/src/main/java/org/apache/xtable/delta/DeltaConversionTarget.java
+++ b/xtable-core/src/main/java/org/apache/xtable/delta/DeltaConversionTarget.java
@@ -66,9 +66,9 @@
 import org.apache.xtable.spi.sync.ConversionTarget;
 
 public class DeltaConversionTarget implements ConversionTarget {
-  private static final String MIN_READER_VERSION = String.valueOf(1);
+  private static final String MIN_READER_VERSION = String.valueOf(3);
   // gets access to generated columns.
-  private static final String MIN_WRITER_VERSION = String.valueOf(4);
+  private static final String MIN_WRITER_VERSION = String.valueOf(7);
 
   private DeltaLog deltaLog;
   private DeltaSchemaExtractor schemaExtractor;
diff --git a/xtable-core/src/main/java/org/apache/xtable/delta/DeltaSchemaExtractor.java b/xtable-core/src/main/java/org/apache/xtable/delta/DeltaSchemaExtractor.java
index a10ee1208..9cb4f1a4a 100644
--- a/xtable-core/src/main/java/org/apache/xtable/delta/DeltaSchemaExtractor.java
+++ b/xtable-core/src/main/java/org/apache/xtable/delta/DeltaSchemaExtractor.java
@@ -61,6 +61,11 @@ public class DeltaSchemaExtractor {
   private static final String DELTA_COLUMN_MAPPING_ID = "delta.columnMapping.id";
   private static final String COMMENT = "comment";
   private static final DeltaSchemaExtractor INSTANCE = new DeltaSchemaExtractor();
+  // Timestamps in Delta are microsecond precision by default
+  private static final Map<InternalSchema.MetadataKey, Object>
+      DEFAULT_TIMESTAMP_PRECISION_METADATA =
+          Collections.singletonMap(
+              InternalSchema.MetadataKey.TIMESTAMP_PRECISION, InternalSchema.MetadataValue.MICROS);
 
   public static DeltaSchemaExtractor getInstance() {
     return INSTANCE;
@@ -88,7 +93,6 @@ private DataType convertFieldType(InternalField field) {
       case INT:
         return DataTypes.IntegerType;
       case LONG:
-      case TIMESTAMP_NTZ:
         return DataTypes.LongType;
       case BYTES:
       case FIXED:
@@ -102,6 +106,8 @@ private DataType convertFieldType(InternalField field) {
         return DataTypes.DateType;
       case TIMESTAMP:
         return DataTypes.TimestampType;
+      case TIMESTAMP_NTZ:
+        return DataTypes.TimestampNTZType;
       case DOUBLE:
         return DataTypes.DoubleType;
       case DECIMAL:
@@ -206,11 +212,11 @@ private InternalSchema toInternalSchema(
         break;
       case "timestamp":
         type = InternalType.TIMESTAMP;
-        // Timestamps in Delta are microsecond precision by default
-        metadata =
-            Collections.singletonMap(
-                InternalSchema.MetadataKey.TIMESTAMP_PRECISION,
-                InternalSchema.MetadataValue.MICROS);
+        metadata = DEFAULT_TIMESTAMP_PRECISION_METADATA;
+        break;
+      case "timestamp_ntz":
+        type = InternalType.TIMESTAMP_NTZ;
+        metadata = DEFAULT_TIMESTAMP_PRECISION_METADATA;
         break;
       case "struct":
         StructType structType = (StructType) dataType;
diff --git a/xtable-core/src/test/java/org/apache/xtable/delta/TestDeltaSchemaExtractor.java b/xtable-core/src/test/java/org/apache/xtable/delta/TestDeltaSchemaExtractor.java
index 361245feb..d1e416094 100644
--- a/xtable-core/src/test/java/org/apache/xtable/delta/TestDeltaSchemaExtractor.java
+++ b/xtable-core/src/test/java/org/apache/xtable/delta/TestDeltaSchemaExtractor.java
@@ -395,8 +395,8 @@ public void testTimestamps() {
 
     StructType structRepresentationTimestampNtz =
         new StructType()
-            .add("requiredTimestampNtz", DataTypes.LongType, false)
-            .add("optionalTimestampNtz", DataTypes.LongType, true);
+            .add("requiredTimestampNtz", DataTypes.TimestampNTZType, false)
+            .add("optionalTimestampNtz", DataTypes.TimestampNTZType, true);
 
     Assertions.assertEquals(
         structRepresentationTimestamp,