diff --git a/debian/python3-osm-nbi.postinst b/debian/python3-osm-nbi.postinst
index 54dadb1..29baa0d 100755
--- a/debian/python3-osm-nbi.postinst
+++ b/debian/python3-osm-nbi.postinst
@@ -24,6 +24,7 @@
 python3 -m pip install cherrypy==18.1.2
 python3 -m pip install keystoneauth1
 python3 -m pip install jsonschema==3.2.0
+python3 -m pip install tacacs_plus
 
 #Creation of log folder
 mkdir -p /var/log/osm