diff --git a/requirements-dev.txt b/requirements-dev.txt
index 6a6fc64..6fd1fbe 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -13,7 +13,7 @@ pre-commit==2.2.0
 py==1.8.1
 pyparsing==2.4.6
 pytest==5.4.1
-PyYAML==5.3
+PyYAML==5.4
 requirements-tools==1.2.3
 six==1.14.0
 toml==0.10.0