diff --git a/requirements_test.txt b/requirements_test.txt
index d37cdd8..1739326 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -30,7 +30,7 @@ pycryptodome==3.6.6
 python-dateutil==2.7.3
 python-jose==2.0.2
 pytz==2018.5
-PyYAML==3.13
+PyYAML==5.4
 requests==2.20.0
 responses==0.9.0
 s3transfer==0.1.13