diff --git a/package.json b/package.json
index 852d6ec..5f92a1c 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
 	"name": "devchat",
 	"displayName": "DevChat",
 	"description": "Write prompts, not code",
-	"version": "0.0.34",
+	"version": "0.0.38",
 	"icon": "assets/devchat.png",
 	"publisher": "merico",
 	"engines": {
diff --git a/src/contributes/commands.ts b/src/contributes/commands.ts
index f747b4b..9424273 100644
--- a/src/contributes/commands.ts
+++ b/src/contributes/commands.ts
@@ -65,7 +65,7 @@ function checkDependencyPackage() {
 			if (selectedAction === installAction) {
 				// Install devchat using pip3 install devchat
 				const terminal = vscode.window.createTerminal("DevChat Install");
-				terminal.sendText("pip3 install devchat");
+				terminal.sendText("pip3 install --upgrade devchat");
 				terminal.show();
 			}
 		});
diff --git a/src/extension.ts b/src/extension.ts
index 6ad05bc..35f9e0b 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -64,7 +64,12 @@ function activate(context: vscode.ExtensionContext) {
 		// 2. dependence is invalid
 		// 3. ready
 		if (devchatStatus === '' || devchatStatus === 'waitting install devchat') {
-			const bOk = checkDevChatDependency();
+			let bOk = true;
+			let devChat : string|undefined = vscode.workspace.getConfiguration('DevChat').get('DevChatPath');
+			if (!devChat) {
+				bOk = false;
+			}
+
 			if (bOk) {
 				devchatStatus = 'ready';
 			} else {
@@ -76,7 +81,7 @@ function activate(context: vscode.ExtensionContext) {
 		if (devchatStatus === 'not ready') {
 			// auto install devchat
 			const terminal = vscode.window.createTerminal("DevChat Install");
-			terminal.sendText("pip3 install devchat");
+			terminal.sendText("pip3 install --upgrade devchat");
 			terminal.show();
 			devchatStatus = 'waitting install devchat';
 		}