diff --git a/requirements.txt b/requirements.txt
index 37a5599..46c12b6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,6 @@
 jinja2
 grpcio-tools
 grpclib
-git+https://osm.etsi.org/gerrit/osm/common.git@v9.0#egg=osm-common
-git+https://osm.etsi.org/gerrit/osm/N2VC.git@v9.0#egg=n2vc
+git+https://osm.etsi.org/gerrit/osm/common.git@bug1511#egg=osm-common
+git+https://osm.etsi.org/gerrit/osm/N2VC.git@bug1511#egg=n2vc