diff --git a/requirements.txt b/requirements.txt
index a21bb4d..181cbd9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ mistune==0.8.4
 openapi-spec-validator==0.2.4
 PyJWT==1.6.4
 pytz==2018.7
-PyYAML==3.13
+PyYAML==5.4
 requests==2.20.1
 Salesforce-FuelSDK==1.1.1
 six==1.11.0