diff --git a/docs/requirements.txt b/docs/requirements.txt
index e5b5588..c9e9127 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,7 +1,7 @@
 Django==1.9.1
 Markdown==2.6.5
 Pillow==2.6.0
-PyYAML==3.11
+PyYAML==5.4
 clint==0.5.1
 django-debug-toolbar==1.5
 django-flatblocks==0.9.2