diff --git a/.gitignore b/.gitignore
index f198d42..68818c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,5 @@ yarn.lock
 wsEndpoint
 .output/
 dist/
+lib/
+module/
diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..9c79abf
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1 @@
+**/__tests__/**
\ No newline at end of file
diff --git a/package.json b/package.json
index ea13c83..5d59221 100644
--- a/package.json
+++ b/package.json
@@ -2,16 +2,22 @@
   "name": "swagger-faker",
   "version": "0.6.0",
   "description": "Generate fake data from swagger",
-  "main": "dist/index.js",
+  "main": "lib/index.js",
+  "module": "module/index.js",
   "files": [
-    "dist",
+    "lib",
+    "module",
+    "src",
     "README.md"
   ],
   "scripts": {
     "start": " ts-node examples/fakerGen.ts",
     "test": "jest",
     "build": "rm -rf dist/ && tsc",
-    "prepare": "npm run build && npm test"
+    "release": "npm run build:es5 && npm run build:es6",
+    "build:es5": "rm -rf lib && tsc --build ./tsconfig.build.es5.json",
+    "build:es6": "rm -rf module && tsc --build ./tsconfig.build.es6.json",
+    "prepare": "npm run release && npm test"
   },
   "repository": {
     "type": "git",
diff --git a/tsconfig.build.es5.json b/tsconfig.build.es5.json
new file mode 100644
index 0000000..d1ebb49
--- /dev/null
+++ b/tsconfig.build.es5.json
@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "target": "es5",
+    "module": "commonjs",
+    "outDir": "lib"
+  }
+}
diff --git a/tsconfig.build.es6.json b/tsconfig.build.es6.json
new file mode 100644
index 0000000..c7d94eb
--- /dev/null
+++ b/tsconfig.build.es6.json
@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "target": "es5",
+    "module": "es6",
+    "outDir": "module"
+  }
+}