diff --git a/requirements.txt b/requirements.txt
index 490fd49..fa932dc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ pycparser==2.19
 PyJWT==1.7.1
 python-dotenv==0.10.1
 pytz==2018.9
-PyYAML==5.1
+PyYAML==5.4
 requests==2.21.0
 six==1.12.0
 sqlparse==0.3.0