diff --git a/requirements.txt b/requirements.txt
index c7995c3..8722913 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ mkdocs-bootswatch==1.0
 mkdocs-material==4.4.3
 Pygments==2.5.1
 pymdown-extensions==6.2
-PyYAML==5.1.2
+PyYAML==5.2
 singledispatch==3.4.0.3
 six==1.12.0
 tornado==6.0.3