diff --git a/plinth/modules/janus/__init__.py b/plinth/modules/janus/__init__.py
index 64a1d0f39..d7be8417d 100644
--- a/plinth/modules/janus/__init__.py
+++ b/plinth/modules/janus/__init__.py
@@ -25,6 +25,11 @@ _description = [
     format_lazy(
         _('<a href="{coturn_url}">Coturn</a> is required to '
           'use Janus.'), coturn_url=reverse_lazy('coturn:index')),
+    format_lazy(
+        _('<strong>Note:</strong> This app receives frequent feature updates. '
+          'It can only be installed if frequent feature updates is enabled in '
+          'the <a href="{upgrades_url}">Software Update</a> app.'),
+        upgrades_url=reverse_lazy('upgrades:index')),
 ]
 
 
diff --git a/plinth/modules/upgrades/__init__.py b/plinth/modules/upgrades/__init__.py
index a412e022e..84511477d 100644
--- a/plinth/modules/upgrades/__init__.py
+++ b/plinth/modules/upgrades/__init__.py
@@ -55,7 +55,7 @@ class UpgradesApp(app_module.App):
 
     app_id = 'upgrades'
 
-    _version = 20
+    _version = 21
 
     can_be_disabled = False
 
diff --git a/plinth/modules/upgrades/privileged.py b/plinth/modules/upgrades/privileged.py
index bec033389..f0cf1a753 100644
--- a/plinth/modules/upgrades/privileged.py
+++ b/plinth/modules/upgrades/privileged.py
@@ -74,6 +74,17 @@ Explanation: matrix-synapse recommends python3-pympler
 Package: python3-pympler
 Pin: release n=sid
 Pin-Priority: 200
+
+Explanation: Make janus package and its dependencies installable from Debian
+Explanation: 'unstable' distribution.
+Package: janus
+Pin: release n=sid
+Pin-Priority: 200
+
+Explanation: Janus app in FreedomBox needs the package for web UI.
+Package: libjs-janus-gateway
+Pin: release n=sid
+Pin-Priority: 200
 '''
 
 APT_PREFERENCES_UNSTABLE = \