diff --git a/requirements.txt b/requirements.txt
index b773307..9a2f3f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-PyYAML==3.11
+PyYAML==5.4
 argparse==1.2.1
 elasticsearch==1.0.0
 psutil==2.1.1