diff --git a/index.js b/index.js
index f23ed36..653b551 100755
--- a/index.js
+++ b/index.js
@@ -430,7 +430,7 @@ if (shellable || cmdable) {
         });
     });
     
-    const pty = require("pty.js");
+    const pty = require("node-pty");
     const io = require("socket.io")(http);
 
     app.get("/*@shell", (req, res) => {
diff --git a/package.json b/package.json
index 369ea63..0477339 100644
--- a/package.json
+++ b/package.json
@@ -16,9 +16,9 @@
     "express-session": "^1.15.6",
     "filesize": "^3.6.0",
     "jquery": "^3.3.1",
+    "node-pty": "^0.7.8",
     "notp": "^2.0.3",
     "octicons": "^6.0.1",
-    "pty.js": "^0.3.1",
     "rimraf": "^2.6.2",
     "socket.io": "^2.0.4",
     "thirty-two": "^1.0.2"
diff --git a/yarn.lock b/yarn.lock
index 5098d58..63509cd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -402,10 +402,6 @@ express@^4.16.2:
     utils-merge "1.0.1"
     vary "~1.1.2"
 
-extend@~1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/extend/-/extend-1.2.1.tgz#a0f5fd6cfc83a5fe49ef698d60ec8a624dd4576c"
-
 filesize@^3.6.0:
   version "3.6.1"
   resolved "https://registry.yarnpkg.com/filesize/-/filesize-3.6.1.tgz#090bb3ee01b6f801a8a8be99d31710b3422bb317"
@@ -616,14 +612,20 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
-nan@2.3.5:
-  version "2.3.5"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.3.5.tgz#822a0dc266290ce4cd3a12282ca3e7e364668a08"
+nan@2.10.0:
+  version "2.10.0"
+  resolved "http://registry.npmjs.org/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
 
 negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
 
+node-pty@^0.7.8:
+  version "0.7.8"
+  resolved "https://registry.yarnpkg.com/node-pty/-/node-pty-0.7.8.tgz#9ed2f01f84263acc96982876e734aa75490bf3d8"
+  dependencies:
+    nan "2.10.0"
+
 normalize-path@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
@@ -725,13 +727,6 @@ proxy-addr@~2.0.3:
     forwarded "~0.1.2"
     ipaddr.js "1.6.0"
 
-pty.js@^0.3.1:
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/pty.js/-/pty.js-0.3.1.tgz#81f5bed332d6e5e7ab685688d1ba0373410d51b5"
-  dependencies:
-    extend "~1.2.1"
-    nan "2.3.5"
-
 qs@6.5.1:
   version "6.5.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"