diff --git a/package.json b/package.json
index 0141ca2b..f70619de 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "glob": "^7.0.5",
     "jsdoc": "3.4.0",
     "mocha": "2.5.3",
-    "pty.js": "0.3.0",
+    "pty.js": "0.3.1",
     "sleep": "^3.0.1"
   },
   "scripts": {