diff --git a/requirements-py3.txt b/requirements-py3.txt
index c7419e4e..4068059c 100644
--- a/requirements-py3.txt
+++ b/requirements-py3.txt
@@ -69,7 +69,7 @@ python-dateutil==2.7.3
 python-etcd==0.4.5
 python-lefthandclient==2.1.0
 pytz==2018.5
-PyYAML==4.2b4
+PyYAML==5.4
 repoze.lru==0.7
 requests==2.19.1
 retrying==1.3.3
diff --git a/requirements.txt b/requirements.txt
index e37589b0..0622c3c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -68,7 +68,7 @@ python-dateutil==2.6.1
 python-etcd==0.4.5
 python-lefthandclient==2.1.0
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 repoze.lru==0.6
 requests==2.18.4
 retrying==1.3.3