diff --git a/go.mod b/go.mod
index 376af6e..cdde6e9 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,4 @@
+// Deprecated: use smariot.com/color/noklaba instead.
 module smariot.com/oklab
 
 go 1.22.1