diff --git a/requirements.txt b/requirements.txt
index 0f04875..1ea2cb3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ pkg_resources == 1.10.0
 platform == 1.0.8
 progressbar == 3.47.0
 prompt_toolkit == 2.0.10
-psutil == 5.6.3
+psutil == 5.6.6
 ptyprocess == 0.6.0
 pygments == 2.4.2
 pymc3 == 3.7