diff --git a/requirements.txt b/requirements.txt
index cefdabc..d1d9a94 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ jsonpickle==1.0
 MarkupSafe==1.0
 marshmallow==2.16.3
 PyFunctional==1.2.0
-PyYAML==3.13
+PyYAML==5.4
 requests==2.18.4
 six==1.11.0
 sqlparse==0.2.4