diff --git a/requirements.txt b/requirements.txt
index b0dce5a..783945d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ Pillow
 netaddr
 scapy
 dnslib
-Twisted
+Twisted==15.0.0
 lxml
 pefile
 ipy