diff --git a/README b/README
index ca0656a..490c36d 100644
--- a/README
+++ b/README
@@ -14,6 +14,11 @@ Features:
 * very low memory (a few tens of megabytes) and cpu requirements.
 * crawlers run in parallel (by default 24 threads simultaneously).
 
+REQUIREMENTS
+------------
+
+$ sudo apt-get install build-essential libboost-all-dev libssl-dev
+
 USAGE
 -----