diff --git a/requirements.txt b/requirements.txt
index 57fd8fc..5d53721 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ pyparsing==2.2.0
 pytest==3.0.4
 pytest-cov==2.4.0
 pytest-flake8==0.8.1
-PyYAML==3.12
+PyYAML==5.4
 requests==2.13.0
 requests-toolbelt==0.7.1
 six==1.10.0