diff --git a/MEV_searchers/code_resources/proxies/README.md b/MEV_searchers/code_resources/proxies/README.md
index 613555a..24e9977 100644
--- a/MEV_searchers/code_resources/proxies/README.md
+++ b/MEV_searchers/code_resources/proxies/README.md
@@ -16,3 +16,4 @@
 <br>
 
 * [thread on renit](https://twitter.com/libevm/status/1468390867996086275)
+* [proxy pattern](https://docs.openzeppelin.com/upgrades-plugins/1.x/proxies)