diff --git a/modules/terraform-aws-alternat/versions.tf b/modules/terraform-aws-alternat/versions.tf
new file mode 100644
index 0000000..143b40d
--- /dev/null
+++ b/modules/terraform-aws-alternat/versions.tf
@@ -0,0 +1,10 @@
+terraform {
+  required_version = ">= 1.0"
+
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = ">= 4"
+    }
+  }
+}