diff --git a/requirements.txt b/requirements.txt
index 7f7b9ea..993849d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 dnspython==1.15.0
-psutil==5.4.5
+psutil==5.6.6
 python-etcd==0.4.5
 tornado==5.0.2
 urllib3==1.22