diff --git a/requirements.txt b/requirements.txt
index d63963c..f76a573 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-PyYAML==5.1.2
+PyYAML==5.4
 semantic-version==2.8.2
diff --git a/setup.py b/setup.py
index 8e2c678..01b783b 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@
         ]
     },
 
-    install_requires=['PyYAML==5.1.2', 'semantic-version==2.8.2'],
+    install_requires=['PyYAML==5.4', 'semantic-version==2.8.2'],
 
     author="Herbert Koelman",
     author_email="herbert.koelman@me.com",