diff --git a/README.md b/README.md
index f5aa2163..a7f65789 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,9 @@
   <img width="250" align="center" src="https://github.com/zixuanzh/py-libp2p/blob/master/assets/py-libp2p-logo.png?raw=true" alt="py-libp2p hex logo" />
 </h1>
 
+## WARNING
+py-libp2p is an experimental and work-in-progress repo under heavy development. We do not yet recommend using py-libp2p in production environments.
+
 ## Development
 
 py-libp2p requires Python 3.6 and the best way to guarantee a clean Python 3.6 environment is with [`virtualenv`](https://virtualenv.pypa.io/en/stable/)