diff --git a/requirements.txt b/requirements.txt
index 8aeb6c2..c78404a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-paramiko==2.5.0
-tornado==5.1.1; python_version < '3.5.2'
-tornado==6.0.2; python_version >= '3.5.2'
+paramiko==2.6.0
+tornado==5.1.1; python_version < '3.5'
+tornado==6.0.3; python_version >= '3.5'