diff --git a/specification/esql/query/QueryRequest.ts b/specification/esql/query/QueryRequest.ts
index d085a570ba..31bfbcdcd8 100644
--- a/specification/esql/query/QueryRequest.ts
+++ b/specification/esql/query/QueryRequest.ts
@@ -60,6 +60,5 @@ export interface Request extends RequestBase {
      * The ES|QL query API accepts an ES|QL query string in the query parameter, runs it, and returns the results.
      */
     query: string
-    time_zone?: TimeZone
   }
 }