diff --git a/requirements.txt b/requirements.txt
index ee161c00cb..b0c203ed12 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -63,5 +63,5 @@ psycopg2-binary==2.7.5
 sqlparse==0.2.4
 Pygments==2.2.0
 frontmatter
-PyYAML==5.1
+PyYAML==5.4
 xlrd