diff --git a/README.md b/README.md
index 0330f83..acaf178 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,7 @@
 # XMRig
+
+:warning: **You must update miners to version 2.5 before March 28 due [Monero PoW change](https://getmonero.org/2018/02/11/PoW-change-and-key-reuse.html).**
+
 [![Github All Releases](https://img.shields.io/github/downloads/xmrig/xmrig/total.svg)](https://github.com/xmrig/xmrig/releases)
 [![GitHub release](https://img.shields.io/github/release/xmrig/xmrig/all.svg)](https://github.com/xmrig/xmrig/releases)
 [![GitHub Release Date](https://img.shields.io/github/release-date-pre/xmrig/xmrig.svg)](https://github.com/xmrig/xmrig/releases)