diff --git a/README.md b/README.md
index 69dd017..7acfa4e 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+** WARNING This version needs the current development version of node.js to run.  Use 0.1.0 if you're using a release version of node. **
+
 Grasshopper
 ==========