diff --git a/src/main/java/org/springframework/data/elasticsearch/client/elc/RequestConverter.java b/src/main/java/org/springframework/data/elasticsearch/client/elc/RequestConverter.java
index 7de1c517d..4fb7ba682 100644
--- a/src/main/java/org/springframework/data/elasticsearch/client/elc/RequestConverter.java
+++ b/src/main/java/org/springframework/data/elasticsearch/client/elc/RequestConverter.java
@@ -55,6 +55,7 @@
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
+import java.io.StringReader;
 import java.nio.charset.StandardCharsets;
 import java.time.Duration;
 import java.util.ArrayList;
@@ -144,14 +145,12 @@ public CreateIndexRequest indicesCreateRequest(IndexCoordinates indexCoordinates
 		createRequestBuilder.index(indexCoordinates.getIndexName());
 
 		// note: the new client does not support the index.storeType anymore
-		String settingsJson = Document.from(settings).toJson();
-		IndexSettings indexSettings = fromJson(settingsJson, IndexSettings._DESERIALIZER);
-		createRequestBuilder.settings(indexSettings);
+		createRequestBuilder.settings(IndexSettings.of(b -> b //
+				.withJson(new StringReader(Document.from(settings).toJson()))));
 
 		if (mapping != null) {
-			String mappingJson = mapping.toJson();
-			TypeMapping typeMapping = fromJson(mappingJson, TypeMapping._DESERIALIZER);
-			createRequestBuilder.mappings(typeMapping);
+			createRequestBuilder.mappings(TypeMapping.of(b -> b //
+					.withJson(new StringReader(mapping.toJson()))));
 		}
 
 		return createRequestBuilder.build();
@@ -243,11 +242,12 @@ public PutMappingRequest indicesPutMappingRequest(IndexCoordinates indexCoordina
 		Assert.notNull(indexCoordinates, "indexCoordinates must not be null");
 		Assert.notNull(mapping, "mapping must not be null");
 
-		PutMappingRequest.Builder builder = new PutMappingRequest.Builder();
-		builder.index(Arrays.asList(indexCoordinates.getIndexNames()));
-		addPropertiesToMapping(builder, mapping);
+		PutMappingRequest request = new PutMappingRequest.Builder() //
+				.withJson(new StringReader(mapping.toJson())) //
+				.index(Arrays.asList(indexCoordinates.getIndexNames())) //
+				.build();
 
-		return builder.build();
+		return request;
 	}
 
 	public GetMappingRequest indicesGetMappingRequest(IndexCoordinates indexCoordinates) {
@@ -257,23 +257,6 @@ public GetMappingRequest indicesGetMappingRequest(IndexCoordinates indexCoordina
 		return new GetMappingRequest.Builder().index(Arrays.asList(indexCoordinates.getIndexNames())).build();
 	}
 
-	private void addPropertiesToMapping(PutMappingRequest.Builder builder, Document mapping) {
-		Object properties = mapping.get("properties");
-
-		if (properties != null) {
-
-			if (properties instanceof Map) {
-				Map<String, Property> propertiesMap = new HashMap<>();
-				// noinspection unchecked
-				((Map<String, Object>) properties).forEach((key, value) -> {
-					Property property = getProperty(value);
-					propertiesMap.put(key, property);
-				});
-				builder.properties(propertiesMap);
-			}
-		}
-	}
-
 	private Property getProperty(Object value) {
 		// noinspection SpellCheckingInspection
 		ByteArrayOutputStream baos = new ByteArrayOutputStream();
diff --git a/src/test/java/org/springframework/data/elasticsearch/core/index/MappingBuilderIntegrationTests.java b/src/test/java/org/springframework/data/elasticsearch/core/index/MappingBuilderIntegrationTests.java
index 76ef14441..3f3912b20 100644
--- a/src/test/java/org/springframework/data/elasticsearch/core/index/MappingBuilderIntegrationTests.java
+++ b/src/test/java/org/springframework/data/elasticsearch/core/index/MappingBuilderIntegrationTests.java
@@ -43,7 +43,16 @@
 import org.springframework.context.annotation.Import;
 import org.springframework.data.annotation.Id;
 import org.springframework.data.elasticsearch.NewElasticsearchClientDevelopment;
-import org.springframework.data.elasticsearch.annotations.*;
+import org.springframework.data.elasticsearch.annotations.DateFormat;
+import org.springframework.data.elasticsearch.annotations.Document;
+import org.springframework.data.elasticsearch.annotations.Dynamic;
+import org.springframework.data.elasticsearch.annotations.Field;
+import org.springframework.data.elasticsearch.annotations.FieldType;
+import org.springframework.data.elasticsearch.annotations.InnerField;
+import org.springframework.data.elasticsearch.annotations.Mapping;
+import org.springframework.data.elasticsearch.annotations.MultiField;
+import org.springframework.data.elasticsearch.annotations.Setting;
+import org.springframework.data.elasticsearch.annotations.TermVector;
 import org.springframework.data.elasticsearch.core.ElasticsearchOperations;
 import org.springframework.data.elasticsearch.core.IndexOperations;
 import org.springframework.data.elasticsearch.core.MappingContextBaseTests;
@@ -205,11 +214,37 @@ void shouldWriteMappingForDisabledProperty() {
 	}
 
 	@Test // #1767
-	@DisplayName("should write dynamic mapping annotations")
-	void shouldWriteDynamicMappingAnnotations() {
+	@DisplayName("should write dynamic mapping annotations on create")
+	void shouldWriteDynamicMappingAnnotationsOnCreate() {
 
 		IndexOperations indexOps = operations.indexOps(DynamicMappingAnnotationEntity.class);
 		indexOps.createWithMapping();
+
+		var mapping = indexOps.getMapping();
+		var dynamic = mapping.get("dynamic");
+		if (dynamic instanceof String s) {
+			assertThat(dynamic).isEqualTo("false");
+		} else {
+			assertThat(mapping.get("dynamic")).isEqualTo(false);
+		}
+	}
+
+	@Test // #2478
+	@DisplayName("should write dynamic mapping annotations on put")
+	void shouldWriteDynamicMappingAnnotationsOnPut() {
+
+		IndexOperations indexOps = operations.indexOps(DynamicMappingAnnotationEntity.class);
+		indexOps.create();
+
+		indexOps.putMapping();
+
+		var mapping = indexOps.getMapping();
+		var dynamic = mapping.get("dynamic");
+		if (dynamic instanceof String s) {
+			assertThat(dynamic).isEqualTo("false");
+		} else {
+			assertThat(mapping.get("dynamic")).isEqualTo(false);
+		}
 	}
 
 	@Test // #1871