diff --git a/tree-view-sample/package.json b/tree-view-sample/package.json
index e7de2d63..072fc53d 100644
--- a/tree-view-sample/package.json
+++ b/tree-view-sample/package.json
@@ -5,7 +5,7 @@
 	"version": "0.0.1",
 	"publisher": "ms-vscode",
 	"engines": {
-		"vscode": "^1.20.0"
+		"vscode": "^1.23.0"
 	},
 	"enableProposedApi": true,
 	"categories": [
@@ -171,4 +171,4 @@
 		"ftp": "^0.3.10",
 		"jsftp": "^2.0.0"
 	}
-}
+}
\ No newline at end of file