diff --git a/requirements.txt b/requirements.txt
index f199b4e..a5bac6e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ pycparser==2.20
 pyparsing==2.4.7
 pytest==5.4.3
 python-dotenv==0.13.0
-PyYAML==5.3.1
+PyYAML==5.4
 requests==2.23.0
 requests-mock==1.8.0
 six==1.15.0