diff --git a/contrib/requirements/requirements.txt b/contrib/requirements/requirements.txt
index d5ec8e32f..dce010590 100644
--- a/contrib/requirements/requirements.txt
+++ b/contrib/requirements/requirements.txt
@@ -9,3 +9,5 @@ aiorpcx>=0.18,<0.19
 aiohttp>=3.3.0
 aiohttp_socks
 certifi
+bitstring
+cryptography