diff --git a/requirements.txt b/requirements.txt
index fb557f7..6c1f5de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ pylint==2.1.1
 pytest==3.10.0
 pytest-cov==2.6.0
 pytz==2018.7
-PyYAML==3.13
+PyYAML==5.1
 requests==2.20.0
 six==1.11.0
 typed-ast==1.1.0