diff --git a/README.md b/README.md
index 58941715..c4bf9fd0 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,8 @@ If you need a command line interface for CoAP, check out
 
 **node-coap** is an **OPEN Open Source Project**, see the <a href="#contributing">Contributing</a> section to find out what this means.
 
+The library *should* run on Node versions 10 and above but is only tested with LTS versions (currently 12, 14, and 16).
+
 <a name="install"></a>
 ## Installation