diff --git a/test_requirements.txt b/test_requirements.txt
index 222341a38bf..0bc88532a61 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -15,7 +15,7 @@ pytest>=5.0.0 ; python_version >= "3.5"
 pytest-cov==2.11.0
 pytest-flake8==1.0.7
 pytest-tornado==0.8.1
-PyYAML==5.3.1
+PyYAML==5.4
 vcrpy<4.0.0 ; python_version < "3.5"
 vcrpy>=4.0.0 ; python_version >= "3.5"
 mock<=3.0.5 ; python_version <= "3.5"