diff --git a/requirements.txt b/requirements.txt
index e786569..decf924 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ requests==2.2.1
 six==1.5.2
 thrift==0.9.1
 treq==0.2.1
-Twisted==13.2.0
+Twisted==19.7.0
 zope.interface==4.1.0
 -e git+git@github.com:kouk/longaccess-core.git@be4fd1514aa884751863a2719b654968b994472e#egg=lacore-develop
 blessed==1.8.3
diff --git a/setup.py b/setup.py
index 53685d6..a2f5239 100644
--- a/setup.py
+++ b/setup.py
@@ -77,7 +77,7 @@ def pep386adapt(version):
           'requests>=2.0.0, <3',
           'pycrypto>=2.6, <2.7',
           'pyaml>=13.07, <14',
-          'Twisted>=13.2, <14',
+          'Twisted>=13.2, <20',
           'crochet>=1.0.0, <2',
           'treq>=0.2.0, <0.3',
           'pyOpenSSL>=0.13, <1',