diff --git a/requirements.txt b/requirements.txt
index 0aa10a7..d21477c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,4 +23,4 @@
 verboselogs
 packaging
 requests
-git+https://osm.etsi.org/gerrit/osm/IM.git@v9.0#egg=osm-im
+git+https://osm.etsi.org/gerrit/osm/IM.git@bug1511#egg=osm-im