diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index 428ced4c6f..7ea6cbbb9f 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -49738,10 +49738,7 @@
           "_meta": {
             "$ref": "#/components/schemas/_types:Metadata"
           }
-        },
-        "required": [
-          "_meta"
-        ]
+        }
       },
       "ingest._types:ProcessorContainer": {
         "type": "object",
diff --git a/output/schema/schema.json b/output/schema/schema.json
index 61484080d5..56c65df3d1 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -130723,7 +130723,7 @@
         {
           "description": "Arbitrary metadata about the ingest pipeline. This map is not automatically generated by Elasticsearch.",
           "name": "_meta",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 1899bc37b5..7aa543633e 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -11762,7 +11762,7 @@ export interface IngestPipeline {
   on_failure?: IngestProcessorContainer[]
   processors?: IngestProcessorContainer[]
   version?: VersionNumber
-  _meta: Metadata
+  _meta?: Metadata
 }
 
 export interface IngestPipelineConfig {
diff --git a/specification/ingest/_types/Pipeline.ts b/specification/ingest/_types/Pipeline.ts
index da8a19de91..8863f1794c 100644
--- a/specification/ingest/_types/Pipeline.ts
+++ b/specification/ingest/_types/Pipeline.ts
@@ -41,7 +41,7 @@ export class Pipeline {
   /**
    * Arbitrary metadata about the ingest pipeline. This map is not automatically generated by Elasticsearch.
    */
-  _meta: Metadata
+  _meta?: Metadata
 }
 
 // Unused .. but let's keep it for now