diff --git a/requirements.txt b/requirements.txt
index 7eed362..8a2642e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ MarkupSafe==1.0
 pycparser==2.18
 PyMySQL==0.9.2
 pytz==2018.5
-PyYAML==3.13
+PyYAML==5.4
 requests==2.19.1
 six==1.11.0
 tzlocal==1.5.1