diff --git a/requirements.txt b/requirements.txt
index 4a5966d..86b3239 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,5 +7,5 @@ Flask-Migrate==3.1.0
 Flask-SQLAlchemy==2.5.1
 Flask-WTF==0.15.1
 flask-ldap3-login==0.9.16
-PyYAML==6.0
+PyYAML==5.4
 inquirer==2.7.0
diff --git a/setup.py b/setup.py
index 8b9e3b4..4ecefeb 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@
         "Flask-Migrate==2.5.2",
         "Flask-SQLAlchemy==2.4.1",
         "Flask-WTF==0.14.3",
-        "PyYAML==5.1.2",
+        "PyYAML==5.4",
         "inquirer==2.6.3",
         "flask-ldap3-login==0.9.16",
     ],