diff --git a/lib/readline-sync.js b/lib/readline-sync.js
index f1f6dcf..f9e3ad7 100644
--- a/lib/readline-sync.js
+++ b/lib/readline-sync.js
@@ -70,7 +70,7 @@ function _readlineSync(options) {
   if (_DBG_checkOptions) { _DBG_checkOptions(options); }
 
   (function() { // open TTY
-    var fsB, constants;
+    var fsB, constants, verNum;
 
     function getFsB() {
       if (!fsB) {
@@ -80,22 +80,24 @@ function _readlineSync(options) {
       return fsB;
     }
 
-    function getVerNum(ver) {
-      var nums = ver.replace(/^\D+/, '').split('.');
-      var verNum = 0;
-      if ((nums[0] = +nums[0])) { verNum += nums[0] * 10000; }
-      if ((nums[1] = +nums[1])) { verNum += nums[1] * 100; }
-      if ((nums[2] = +nums[2])) { verNum += nums[2]; }
-      return verNum;
-    }
-
     if (typeof fdR !== 'string') { return; }
     fdR = null;
 
     if (IS_WIN) {
       // iojs-v2.3.2+ input stream can't read first line. (#18)
       // ** Don't get process.stdin before check! **
-      if (getVerNum(process.version) < 20302 && process.stdin.isTTY) {
+      // Fixed v5.1.0         https://nodejs.org/en/blog/release/v5.1.0/
+      // Fixed v4.2.4 (LTS)   https://nodejs.org/en/blog/release/v4.2.4/
+      verNum = (function(ver) { // getVerNum
+          var nums = ver.replace(/^\D+/, '').split('.');
+          var verNum = 0;
+          if ((nums[0] = +nums[0])) { verNum += nums[0] * 10000; }
+          if ((nums[1] = +nums[1])) { verNum += nums[1] * 100; }
+          if ((nums[2] = +nums[2])) { verNum += nums[2]; }
+          return verNum;
+        })(process.version);
+      if (!(verNum >= 20302 && verNum < 40204 || verNum >= 50000 && verNum < 50100) &&
+          process.stdin.isTTY) {
         process.stdin.pause();
         fdR = process.stdin.fd;
         ttyR = process.stdin._handle;
diff --git a/package.json b/package.json
index dc51539..d0402d6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "readline-sync",
-  "version": "1.2.21",
+  "version": "1.2.22",
   "title": "readlineSync",
   "description": "Synchronous Readline for interactively running to have a conversation with the user via a console(TTY).",
   "keywords": [