diff --git a/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/DenseVectorFieldMapper.java b/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/DenseVectorFieldMapper.java
index ec78420cc0b05..d48a457ba08cd 100644
--- a/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/DenseVectorFieldMapper.java
+++ b/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/DenseVectorFieldMapper.java
@@ -46,7 +46,7 @@
 public class DenseVectorFieldMapper extends FieldMapper implements ArrayValueMapperParser {
 
     public static final String CONTENT_TYPE = "dense_vector";
-    public static short MAX_DIMS_COUNT = 500; //maximum allowed number of dimensions
+    public static short MAX_DIMS_COUNT = 1024; //maximum allowed number of dimensions
     private static final byte INT_BYTES = 4;
 
     public static class Defaults {
diff --git a/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/SparseVectorFieldMapper.java b/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/SparseVectorFieldMapper.java
index bfbf68c5a7662..931e27bc1c19f 100644
--- a/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/SparseVectorFieldMapper.java
+++ b/modules/mapper-extras/src/main/java/org/elasticsearch/index/mapper/SparseVectorFieldMapper.java
@@ -46,7 +46,7 @@
 public class SparseVectorFieldMapper extends FieldMapper {
 
     public static final String CONTENT_TYPE = "sparse_vector";
-    public static short MAX_DIMS_COUNT = 500; //maximum allowed number of dimensions
+    public static short MAX_DIMS_COUNT = 1024; //maximum allowed number of dimensions
     public static int MAX_DIMS_NUMBER = 65535; //maximum allowed dimension's number
 
     public static class Defaults {