diff --git a/requirements.txt b/requirements.txt
index 0b7e70dc..8e756f66 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ msgpack>=0.4.4
 base58
 merkletools
 rsa
-PySocks
+PySocks>=1.6.8
 pyasn1
 websocket_client
 gevent-websocket