diff --git a/src/vs/platform/files/common/files.ts b/src/vs/platform/files/common/files.ts
index f02beeaf06d841e529d5eb5b34910bf607afce0a..51f62ad470e3b2d5994e249763628f3e17f00fe9 100644
--- a/src/vs/platform/files/common/files.ts
+++ b/src/vs/platform/files/common/files.ts
@@ -175,7 +175,6 @@ export interface IFileSystemProvider {
 
 	// more...
 	//
-	utimes(resource: URI, mtime: number, atime: number): TPromise<IStat>;
 	stat(resource: URI): TPromise<IStat>;
 	readFile(resource: URI): TPromise<Uint8Array>;
 	writeFile(resource: URI, content: Uint8Array): TPromise<void>;
diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index 6f94afbe1ced73d951a6652995c737201aab1469..c04087a6d633f5ec89376804ce46f4bfaf494b54 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -185,7 +185,7 @@ declare module 'vscode' {
 		readonly onDidChange?: Event<FileChange[]>;
 
 		// more...
-		//
+		// @deprecated - will go away
 		utimes(resource: Uri, mtime: number, atime: number): Thenable<FileStat>;
 
 		stat(resource: Uri): Thenable<FileStat>;
@@ -232,10 +232,6 @@ declare module 'vscode' {
 
 		readonly onDidChange?: Event<FileChange[]>;
 
-		// more...
-		//
-		utimes(resource: Uri, mtime: number, atime: number): Thenable<FileStat>;
-
 		stat(resource: Uri): Thenable<FileStat>;
 
 		readFile(resource: Uri, token: CancellationToken): Thenable<Uint8Array>;
diff --git a/src/vs/workbench/api/electron-browser/mainThreadFileSystem.ts b/src/vs/workbench/api/electron-browser/mainThreadFileSystem.ts
index ea33b46a78ff486f1248d331b6422ef36e9d2f5c..80ea36bc303971ad539dfb7211888fdcf0d44883 100644
--- a/src/vs/workbench/api/electron-browser/mainThreadFileSystem.ts
+++ b/src/vs/workbench/api/electron-browser/mainThreadFileSystem.ts
@@ -93,9 +93,6 @@ class RemoteFileSystemProvider implements IFileSystemProvider {
 
 	// --- forwarding calls
 
-	utimes(resource: URI, mtime: number, atime: number): TPromise<IStat, any> {
-		return this._proxy.$utimes(this._handle, resource, mtime, atime);
-	}
 	stat(resource: URI): TPromise<IStat, any> {
 		return this._proxy.$stat(this._handle, resource);
 	}
diff --git a/src/vs/workbench/api/node/extHost.protocol.ts b/src/vs/workbench/api/node/extHost.protocol.ts
index 7d29a27fb81b17ae22294244341452381d7a77ab..44e0ba2ce5b84f0a0899d005b36c63184a6549c6 100644
--- a/src/vs/workbench/api/node/extHost.protocol.ts
+++ b/src/vs/workbench/api/node/extHost.protocol.ts
@@ -565,7 +565,6 @@ export interface ExtHostWorkspaceShape {
 }
 
 export interface ExtHostFileSystemShape {
-	$utimes(handle: number, resource: UriComponents, mtime: number, atime: number): TPromise<IStat>;
 	$stat(handle: number, resource: UriComponents): TPromise<IStat>;
 
 	$readFile(handle: number, resource: UriComponents): TPromise<string>;
diff --git a/src/vs/workbench/api/node/extHostFileSystem.ts b/src/vs/workbench/api/node/extHostFileSystem.ts
index db8749594afbbf8d7567fdbff9e7283d4deab3bb..646f22018173d71e82573540329f7ea32b2e3910 100644
--- a/src/vs/workbench/api/node/extHostFileSystem.ts
+++ b/src/vs/workbench/api/node/extHostFileSystem.ts
@@ -66,9 +66,6 @@ class FileSystemProviderShim implements vscode.FileSystemProvider2 {
 		this.onDidChange = this._delegate.onDidChange;
 	}
 
-	utimes(resource: vscode.Uri, mtime: number, atime: number): Thenable<vscode.FileStat> {
-		return this._delegate.utimes(resource, mtime, atime);
-	}
 	stat(resource: vscode.Uri): Thenable<vscode.FileStat> {
 		return this._delegate.stat(resource);
 	}
@@ -170,9 +167,6 @@ export class ExtHostFileSystem implements ExtHostFileSystemShape {
 		};
 	}
 
-	$utimes(handle: number, resource: UriComponents, mtime: number, atime: number): TPromise<IStat, any> {
-		return asWinJsPromise(token => this._fsProvider.get(handle).utimes(URI.revive(resource), mtime, atime));
-	}
 	$stat(handle: number, resource: UriComponents): TPromise<IStat, any> {
 		return asWinJsPromise(token => this._fsProvider.get(handle).stat(URI.revive(resource)));
 	}