diff --git a/requirements.txt b/requirements.txt
index 51fa3e24..b16736e7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ pycodestyle==2.3.1
 redis==2.10.6
 requests==2.18.4
 six==1.11.0
-Twisted==17.9.0
+Twisted==21.2.0
 txaio==2.8.2
 uritemplate==3.0.0
 urllib3==1.22