diff --git a/requirements.txt b/requirements.txt
index 19576d6..c4c452c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ pylint==2.4.3
 PyMySQL==0.9.3
 pyparsing==2.4.5
 pytest==5.2.2
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 six==1.13.0
 SQLAlchemy==1.3.10