diff --git a/package.json b/package.json
index 2839028..0ecd3b8 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "prepare": "node esbuild.js"
   },
   "devDependencies": {
-    "@clangd/install": "^0.1.4",
+    "@clangd/install": "^1.0.0",
     "@types/node": "12.12.0",
     "@types/which": "^2.0.0",
     "@typescript-eslint/eslint-plugin": "^5.0.0",
diff --git a/src/install.ts b/src/install.ts
index b1b3318..56ebfb7 100644
--- a/src/install.ts
+++ b/src/install.ts
@@ -29,6 +29,10 @@ class UI {
     coc.window.showMessage(`Reusing existing ${release} installation in ${this.storagePath}`);
     return true;
   }
+  async promptDelete(path: string) : Promise<boolean|undefined> {
+    coc.window.showMessage(`Deleting previous clangd installation in ${path}`);
+    return true;
+  }
   async promptReload() {
     await coc.commands.executeCommand('editor.action.restart');
   }
@@ -51,6 +55,12 @@ class UI {
   set clangdPath(p: string) {
     this.config.update('path', p.replace(homedir(), '~'), /*isUser=*/ true);
   }
+  get cleanupPath(): string|undefined {
+    return this.context.globalState.get('clangd.install.cleanupPath');
+  }
+  set cleanupPath(p: string|undefined) {
+    this.context.globalState.update('clangd.install.cleanupPath', p);
+  }
 }
 
 // Returns the clangd path to use, or null if clangd is not installed.