diff --git a/requirements.txt b/requirements.txt
index caad9b07..be0000d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ MarkupSafe==0.23
 MySQL-python==1.2.5
 Pillow==2.3.0
 PyHAML==1.0.1
-PyYAML==3.10
+PyYAML==5.4
 SQLAlchemy==1.0.8
 SQLAlchemy-FullText-Search==0.2.3
 SQLAlchemy-ImageAttach==0.8.1