diff --git a/requirements.txt b/requirements.txt
index b0f3035..ad9e103 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 nose==1.3.4
 pandoc==1.0.0a3
-psutil==2.2.0
+psutil==5.6.6