diff --git a/README.md b/README.md
index 47a10cd..22cafad 100644
--- a/README.md
+++ b/README.md
@@ -102,6 +102,7 @@
 ### Registry
 
 - [boring-registry](https://github.com/boring-registry/boring-registry) - Boring-registry is an open-source module and provider registry compatible with Terraform and OpenTofu.
+- [terrac](https://github.com/haoliangyu/terrac) - Minimal private module registry.
 
 ### Helpers