diff --git a/triadb/requirements_pip.txt b/triadb/requirements_pip.txt
index af0d093..e03cca7 100644
--- a/triadb/requirements_pip.txt
+++ b/triadb/requirements_pip.txt
@@ -4,7 +4,7 @@ PyMySQL           == 0.9.3
 
 pandas            == 0.25.1
 petl              == 1.3.0
-psutil            == 5.6.3
+psutil            == 5.6.6
 networkx          == 2.3
 
 matplotlib           == 3.1.1