diff --git a/README.md b/README.md
index 7ca24a1..fc773b2 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ A modern JSON library for Android and Java.
 Download
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-Moshi is currently under development.
+**Moshi is currently under development.** The API is not stable and neither is the feature set. It should not be used.
 
 Snapshots of the development version are available in [Sonatype's `snapshots` repository][snap].