diff --git a/modules/rhizo_base/manifests/osmocom.pp b/modules/rhizo_base/manifests/osmocom.pp
index 12a7fe2..c3f9f53 100644
--- a/modules/rhizo_base/manifests/osmocom.pp
+++ b/modules/rhizo_base/manifests/osmocom.pp
@@ -197,7 +197,8 @@ class rhizo_base::osmocom {
               'osmo-sgsn', 'osmo-sip-connector' ]:
     provider => 'systemd',
     enable   => true,
-    ensure   => 'running'
+    ensure   => 'running',
+    require  => Package[ 'python3-osmopy-utils', 'python3-osmopy-libs' ],
   }
 
   service { [ 'osmocom-nitb', 'osmo-mgw-msc' ]: