diff --git a/5-app-infra/modules/env_base/versions.tf b/5-app-infra/modules/env_base/versions.tf
index 7fcf2ab2d..355f89c87 100644
--- a/5-app-infra/modules/env_base/versions.tf
+++ b/5-app-infra/modules/env_base/versions.tf
@@ -27,7 +27,7 @@ terraform {
     }
     null = {
       source  = "hashicorp/null"
-      version = "~> 2.1"
+      version = "~> 3.1"
     }
 
     random = {