diff --git a/README.md b/README.md
index b311382..c6c8c36 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,8 @@
 # Bdds
 
-If you want to use bdds,
-**YOU FIRST NEED TO INSTALL [cyclonedds](https://github.com/eclipse-cyclonedds/cyclonedds) ON THE OS YOU WANT TO COMPILE IT ON.**
+**YOU FIRST NEED TO INSTALL [cyclonedds](https://github.com/eclipse-cyclonedds/cyclonedds), tag: 0.9.0a1, ON THE HOST MACHINE,**
+
+even if you only want to do crosscompile for Nerves.
 
 If you are interested in the reason, read this [issue](https://github.com/b5g-ex/bdds/issues/1).