diff --git a/requirements.txt b/requirements.txt
index e59a630..2cb184a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-PyYAML==3.10
+PyYAML==5.4
 requests==2.3.0
 pyOpenSSL
 ndg-httpsclient