diff --git a/README.md b/README.md
index 385afa3c..3668d54e 100644
--- a/README.md
+++ b/README.md
@@ -343,6 +343,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
 * [skiplist](https://github.com/MauriceGit/skiplist) - Very fast Go Skiplist implementation.
 * [skiplist](https://github.com/gansidui/skiplist) - Skiplist implementation in Go.
 * [timedmap](https://github.com/zekroTJA/timedmap) - Map with expiring key-value pairs.
+* [treap](https://github.com/perdata/treap) - Persistent, fast ordered map using tree heaps.
 * [trie](https://github.com/derekparker/trie) - Trie implementation in Go.
 * [ttlcache](https://github.com/diegobernardes/ttlcache) - In-memory LRU string-interface{} map with expiration for golang.
 * [willf/bloom](https://github.com/willf/bloom) - Go package implementing Bloom filters.