diff --git a/versions.tf b/versions.tf
index 9547949..ef1e483 100644
--- a/versions.tf
+++ b/versions.tf
@@ -6,7 +6,7 @@ terraform {
     }
     null = {
       source  = "hashicorp/null"
-      version = "~> 2.1"
+      version = "~> 3.0"
     }
     random = {
       source  = "hashicorp/random"