diff --git a/requirements.txt b/requirements.txt
index 94ee61c..84660b2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ entrypoints==0.3
 flake8==3.7.7
 idna==2.8
 mccabe==0.6.1
-psutil==5.5.1
+psutil==5.6.6
 pycodestyle==2.5.0
 pydocstyle==3.0.0
 pyflakes==2.1.1