diff --git a/package.json b/package.json
index 49893b1..2133daa 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,6 @@
   },
   "homepage": "https://github.com/lucaspalomodevelop/JSSTE#readme",
   "dependencies": {
-    "typechecker": "^7.18.0"
   },
   "engines": {
     "node": ">= 0.10.0"
diff --git a/src/engine.js b/src/engine.js
index 0d0f97a..804d4e3 100644
--- a/src/engine.js
+++ b/src/engine.js
@@ -1,5 +1,4 @@
 const fs = require("fs");
-const checker = require("typechecker");
 const path = require("path");
 const jsonmerger = require("./jsonMerger");
 //let appdir = path.join(__dirname, "..");
@@ -32,7 +31,7 @@ app.render = function (pagecode, templatecode) {
   app.setState({ status: 0, statusMSG: "Render Page" });
   if (
     (pagecode != null || pagecode != undefined) &&
-    checker.isString(pagecode)
+    (typeof pagecode === 'string')
   ) {
     pagecode = JSON.parse(pagecode);
     app.setState({ status: 0, statusMSG: "Parse Pagecode" });
diff --git a/src/jsonMerger.js b/src/jsonMerger.js
index e73d9f3..6159233 100644
--- a/src/jsonMerger.js
+++ b/src/jsonMerger.js
@@ -1,12 +1,10 @@
-const checker = require("typechecker");
-
 function mergeJson(org, ext) {
   // let placeholder = undefined;
 
-  if (!checker.isObject(org)) {
+  if (!(typeof org === 'object' && org !== null)) {
     org = JSON.parse(org);
   }
-  if (!checker.isObject(ext)) {
+  if (!(typeof ext === 'object' && ext !== null)) {
     ext = JSON.parse(ext);
   }