diff --git a/README.md b/README.md
index e4a8804..c47bac9 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Although the status and progress front-end is very user-friendly, administering
 
 ### Building from source
 
-First install development packages for `capnproto`, `websocketpp`, `sqlite` and `boost-filesystem` from your distribution's repository or other source. Then:
+First install development packages for `capnproto (git)`, `rapidjson`, `websocketpp`, `sqlite` and `boost-filesystem` from your distribution's repository or other source. Then:
 
 ```bash
 git clone https://github.com/ohwgiles/laminar.git