diff --git a/pkgs/wal-e/requirements_frozen.txt b/pkgs/wal-e/requirements_frozen.txt
index 972fda3..c4a91a8 100644
--- a/pkgs/wal-e/requirements_frozen.txt
+++ b/pkgs/wal-e/requirements_frozen.txt
@@ -121,7 +121,7 @@ python-dateutil==2.7.1
 python-keystoneclient==3.17.0
 python-swiftclient==3.6.0
 pytz==2018.5
-PyYAML==3.13
+PyYAML==5.1
 requests==2.19.1
 requests-oauthlib==1.0.0
 rfc3986==1.1.0