diff --git a/package.json b/package.json
index 91860da5..8d337fc8 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "jsdoc": "3.4.3",
     "jsdom": "^11.1.0",
     "merge-stream": "^1.0.1",
-    "node-pty": "^0.6.0",
+    "node-pty": "^0.7.2",
     "nodemon": "1.10.2",
     "sorcery": "^0.10.0",
     "tslint": "^4.0.2",
diff --git a/src/addons/winptyCompat/winptyCompat.ts b/src/addons/winptyCompat/winptyCompat.ts
index 06a2a81a..1c289c70 100644
--- a/src/addons/winptyCompat/winptyCompat.ts
+++ b/src/addons/winptyCompat/winptyCompat.ts
@@ -4,10 +4,7 @@
  */
 
 declare var exports: any;
-declare var module: any;
 declare var define: any;
-declare var require: any;
-declare var window: any;
 
 (function (addon) {
   if (typeof window !== 'undefined' && 'Terminal' in window) {