diff --git a/requirements-dev.txt b/requirements-dev.txt
index cd3f5bb..cfe55ee 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-git+https://osm.etsi.org/gerrit/osm/IM.git@master#egg=osm-im
+git+https://osm.etsi.org/gerrit/osm/IM.git@sol006v331#egg=osm-im
     # via -r requirements-dev.in
 #######################################################################################
 # Copyright ETSI Contributors and Others.