diff --git a/yacker/files/okd-requirements.txt b/yacker/files/okd-requirements.txt
index 4ffef48..4b88fd6 100644
--- a/yacker/files/okd-requirements.txt
+++ b/yacker/files/okd-requirements.txt
@@ -5,4 +5,4 @@ ansible == 2.7.12
 future == 0.17.1
 jinja2 == 2.10.1
 passlib == 1.7.1
-pyyaml == 3.10
+pyyaml == 5.4