diff --git a/plinth/modules/upgrades/__init__.py b/plinth/modules/upgrades/__init__.py
index 84511477d..101d71c95 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 = 21
+    _version = 22
 
     can_be_disabled = False
 
diff --git a/plinth/modules/upgrades/privileged.py b/plinth/modules/upgrades/privileged.py
index f0cf1a753..018670376 100644
--- a/plinth/modules/upgrades/privileged.py
+++ b/plinth/modules/upgrades/privileged.py
@@ -75,6 +75,16 @@ Package: python3-pympler
 Pin: release n=sid
 Pin-Priority: 200
 
+Explanation: matrix-synapse depends on python3-rpds-py (>= 0.25.0)
+Package: python3-rpds-py
+Pin: release n=sid
+Pin-Priority: 500
+
+Explanation: matrix-synapse depends on typing-extensions (>=4.14.1)
+Package: python3-typing-extensions
+Pin: release n=sid
+Pin-Priority: 500
+
 Explanation: Make janus package and its dependencies installable from Debian
 Explanation: 'unstable' distribution.
 Package: janus