diff --git a/tarnish-server/requirements.txt b/tarnish-server/requirements.txt
index b01ec8d..1c6003e 100644
--- a/tarnish-server/requirements.txt
+++ b/tarnish-server/requirements.txt
@@ -18,7 +18,7 @@ pika==0.11.2
 pycurl==7.43.0.1
 python-dateutil==2.7.2
 pytz==2018.4
-PyYAML==3.12
+PyYAML==5.4
 redis==2.10.6
 requests==2.18.4
 s3transfer==0.1.13
diff --git a/tarnish-server/tarnishworker/requirements.txt b/tarnish-server/tarnishworker/requirements.txt
index c231ed5..2a2adb8 100644
--- a/tarnish-server/tarnishworker/requirements.txt
+++ b/tarnish-server/tarnishworker/requirements.txt
@@ -18,7 +18,7 @@ pika==0.11.2
 pycurl==7.43.0.1
 python-dateutil==2.7.2
 pytz==2018.4
-PyYAML==3.12
+PyYAML==5.4
 redis==2.10.6
 requests==2.18.4
 s3transfer==0.1.13