diff --git a/Docs/3rdparty.txt b/Docs/3rdparty.txt
index 80d2569db..22324a4fd 100644
--- a/Docs/3rdparty.txt
+++ b/Docs/3rdparty.txt
@@ -4,4 +4,6 @@ Scons		1.3+
 Boost		1.37+
 sparsehash 	1.4+
 stxxl		1.2.1+
-libz2-dev	1.0.5+
\ No newline at end of file
+libz2-dev	1.0.5+
+protobuffer 2.3.0+
+zlib        1.2.3.4+
\ No newline at end of file