diff --git a/README.md b/README.md
index 3839050c..d43d53dc 100644
--- a/README.md
+++ b/README.md
@@ -619,6 +619,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
 * [pool](https://github.com/go-playground/pool) - Limited consumer goroutine or unlimited goroutine pool for easier goroutine handling and cancellation.
 * [semaphore](https://github.com/kamilsk/semaphore) - Semaphore pattern implementation with timeout of lock/unlock operations based on channel and context.
 * [semaphore](https://github.com/marusama/semaphore) - Fast resizable semaphore implementation based on CAS (faster than channel-based semaphore implementations).
+* [stl](https://github.com/ssgreg/stl) - Software transactional locks based on Software Transactional Memory (STM) concurrency control mechanism.
 * [tunny](https://github.com/Jeffail/tunny) - Goroutine pool for golang.
 * [worker-pool](https://github.com/vardius/worker-pool) - goworker is a Go simple async worker pool.
 * [workerpool](https://github.com/gammazero/workerpool) - Goroutine pool that limits the concurrency of task execution, not the number of tasks queued.