diff --git a/deprecated/requirements_freeze.txt b/deprecated/requirements_freeze.txt
index 79360d2..401b51e 100644
--- a/deprecated/requirements_freeze.txt
+++ b/deprecated/requirements_freeze.txt
@@ -15,7 +15,7 @@ pyaml==15.5.7
 pymongo==2.8              # via cloudmesh-base, mongoengine
 pytimeparse==1.1.4        # via cloudmesh-base
 pytz==2015.4              # via cloudmesh-timestring
-pyyaml==3.11              # via pyaml
+pyyaml==5.4              # via pyaml
 sh==1.11
 simplejson==3.7.3
 wheel==0.24.0