diff --git a/requirements.txt b/requirements.txt
index 8e17529..18dba80 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,5 +4,5 @@ greenlet==0.4.13
 Mako==1.0.6
 MarkupSafe==1.1.1
 pathtools==0.1.2
-PyYAML==5.1
+PyYAML==5.4
 watchdog==0.8.3