diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index c9d5d157476..38c035aa64b 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -1031,11 +1031,6 @@ declare module 'vscode' {
 		 */
 		transientOutputs?: boolean;
 
-		/**
-		 * @deprecated use transientCellMetadata instead
-		 */
-		transientMetadata?: { [K in keyof NotebookCellMetadata]?: boolean };
-
 		/**
 		 * Controls if a cell metadata property change will trigger notebook document content change and if it will be used in the diff editor
 		 * Default to false. If the content provider doesn't persisit a metadata property in the file document, it should be set to true.
diff --git a/src/vs/workbench/api/common/extHostApiCommands.ts b/src/vs/workbench/api/common/extHostApiCommands.ts
index 2c44e40c33f..fe462f4606f 100644
--- a/src/vs/workbench/api/common/extHostApiCommands.ts
+++ b/src/vs/workbench/api/common/extHostApiCommands.ts
@@ -356,7 +356,6 @@ const newCommands: ApiCommand[] = [
 				displayName: item.displayName,
 				options: {
 					transientOutputs: item.options.transientOutputs,
-					transientMetadata: item.options.transientCellMetadata,
 					transientCellMetadata: item.options.transientCellMetadata,
 					transientDocumentMetadata: item.options.transientDocumentMetadata
 				},
diff --git a/src/vs/workbench/api/common/extHostTypeConverters.ts b/src/vs/workbench/api/common/extHostTypeConverters.ts
index f9e8d73a13a..4271b352438 100644
--- a/src/vs/workbench/api/common/extHostTypeConverters.ts
+++ b/src/vs/workbench/api/common/extHostTypeConverters.ts
@@ -1644,7 +1644,7 @@ export namespace NotebookDocumentContentOptions {
 		return {
 			transientOutputs: options?.transientOutputs ?? false,
 			transientCellMetadata: {
-				...(options?.transientCellMetadata ?? options?.transientMetadata),
+				...options?.transientCellMetadata,
 				executionOrder: true,
 				runState: true,
 				runStartTime: true,