diff --git a/src/requirements.txt b/src/requirements.txt
index 85dcada..dffdcb8 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -1,3 +1,3 @@
 Twisted>=11.0.0
 biplist==0.4
-pyOpenSSL==0.14
+pyOpenSSL==17.5.0