diff --git a/requirements.txt b/requirements.txt
index 256fa3a..f15de99 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,5 +5,5 @@ Jinja2==2.11.2
 MarkupSafe==1.1.1
 pkg-resources==0.0.0
 pycparser==2.20
-PyYAML==5.3.1
+PyYAML==5.4
 six==1.15.0