diff --git a/airflow/requirements-python3.7.txt b/airflow/requirements-python3.7.txt
index 8a90ba1..0b62d4e 100644
--- a/airflow/requirements-python3.7.txt
+++ b/airflow/requirements-python3.7.txt
@@ -21,7 +21,7 @@ PyHive==0.6.2
 PyJWT==1.7.1
 PyNaCl==1.3.0
 PySmbClient==0.1.5
-PyYAML==5.3.1
+PyYAML==5.4
 Pygments==2.6.1
 SQLAlchemy-JSONField==0.9.0
 SQLAlchemy-Utils==0.36.3