diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index 026ea50689..b3370fe101 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -46394,8 +46394,7 @@
               }
             },
             "required": [
-              "type",
-              "dims"
+              "type"
             ]
           }
         ]
diff --git a/output/schema/schema.json b/output/schema/schema.json
index 87cb066081..fda2856fb0 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -67964,7 +67964,7 @@
         },
         {
           "name": "dims",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index f8a19f6886..898a617844 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -4945,7 +4945,7 @@ export interface MappingDenseVectorIndexOptions {
 
 export interface MappingDenseVectorProperty extends MappingPropertyBase {
   type: 'dense_vector'
-  dims: integer
+  dims?: integer
   similarity?: string
   index?: boolean
   index_options?: MappingDenseVectorIndexOptions
diff --git a/specification/_types/mapping/complex.ts b/specification/_types/mapping/complex.ts
index a51d5783ef..4a1bf14814 100644
--- a/specification/_types/mapping/complex.ts
+++ b/specification/_types/mapping/complex.ts
@@ -50,7 +50,7 @@ export class ObjectProperty extends CorePropertyBase {
 
 export class DenseVectorProperty extends PropertyBase {
   type: 'dense_vector'
-  dims: integer
+  dims?: integer
   similarity?: string
   index?: boolean
   index_options?: DenseVectorIndexOptions