update link to upper-constraints.txt

[optf/osdf.git] / requirements.txt

diff --git a/requirements.txt b/requirements.txt
index b17a915..56a8931 100644 (file)
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ Flask-HTTPAuth>=3.2.2
 jsonschema>=2.5.1
 lxml>=3.6.4
 python-dateutil>=2.5.3
-PyYAML>=3.12
+PyYAML==5.4.1
 requests>=2.14.2
 schematics>=2.0.0
 onapsmsclient>=0.0.4