diff --git a/requirements.txt b/requirements.txt
index 8678404..2f48594 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,4 +14,4 @@ requests==2.21.0
 decorator==4.3.0
 attrs==18.1.0
 antlr4-python3-runtime==4.7.2
-psutil==5.6.3
+psutil==5.6.6