diff --git a/requirements.txt b/requirements.txt
index 4dfc8d7..4af6b0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ PyDrive==1.3.1
 pyparsing==2.3.0
 python-dateutil==2.7.5
 pytz==2018.7
-PyYAML==3.13
+PyYAML==5.4
 requests==2.20.1
 rsa==4.0
 six==1.11.0