diff --git a/requirements.txt b/requirements.txt
index 4b0da86..993ba22 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@
 Flask==0.12.2
 Jinja2==2.11.3
 Werkzeug==0.15.4
-PyYAML==5.1
+PyYAML==6.0.3
 requests==2.6.0
 markupsafe==2.0.1
 itsdangerous==0.24