diff --git a/requirements.txt b/requirements.txt
index eeb2c4f992..90b9cf2161 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,6 +13,6 @@ mkdocs-material-extensions==1.0.1
 pep562==1.0
 Pygments==2.5.2
 pymdown-extensions==9.0
-PyYAML==5.3
+PyYAML==5.4
 six==1.14.0
 tornado==6.0.3