diff --git a/.changeset/blue-coats-rescue.md b/.changeset/blue-coats-rescue.md
new file mode 100644
index 0000000000..5f819a8dea
--- /dev/null
+++ b/.changeset/blue-coats-rescue.md
@@ -0,0 +1,5 @@
+---
+"@redocly/openapi-core": patch
+---
+
+Removed support for `in: body` parameters due to Arazzo specification updates.
diff --git a/packages/core/src/types/arazzo.ts b/packages/core/src/types/arazzo.ts
index d17ef80963..c66faa97b5 100755
--- a/packages/core/src/types/arazzo.ts
+++ b/packages/core/src/types/arazzo.ts
@@ -84,7 +84,7 @@ const ReusableObject: NodeType = {
 };
 const Parameter: NodeType = {
   properties: {
-    in: { type: 'string', enum: ['header', 'query', 'path', 'cookie', 'body'] },
+    in: { type: 'string', enum: ['header', 'query', 'path', 'cookie'] },
     name: { type: 'string' },
     value: {}, // any
   },
diff --git a/packages/core/src/typings/arazzo.ts b/packages/core/src/typings/arazzo.ts
index 1e6b1f3b27..5b12e5c8c6 100644
--- a/packages/core/src/typings/arazzo.ts
+++ b/packages/core/src/typings/arazzo.ts
@@ -21,7 +21,7 @@ export interface ArazzoSourceDescription {
 export type SourceDescription = OpenAPISourceDescription | ArazzoSourceDescription;
 
 export interface Parameter {
-  in?: 'header' | 'query' | 'path' | 'cookie' | 'body';
+  in?: 'header' | 'query' | 'path' | 'cookie';
   name: string;
   value: string | number | boolean;
   reference?: string;