diff --git a/main.tf b/main.tf
index 316a830..32f2d3d 100644
--- a/main.tf
+++ b/main.tf
@@ -1,5 +1,9 @@
 terraform {
   required_version = ">= 0.12.1"
+  
+  required_providers {
+    null = "~> 2.1"  
+  }
 }
 
 provider "aws" {