diff --git a/actions/upgrades b/actions/upgrades
index d92699c6b..bfb49141b 100755
--- a/actions/upgrades
+++ b/actions/upgrades
@@ -47,6 +47,16 @@ Explanation: matrix-synapse >= 1.11 requires python3-signedjson >= 1.1.0
 Package: python3-signedjson
 Pin: release a=buster-backports
 Pin-Priority: 500
+
+Explanation: matrix-synapse >= 1.12 requires python3-twisted >= 18.9.0-8~
+Package: python3-twisted
+Pin: release a=buster-backports
+Pin-Priority: 500
+
+Explanation: python3-twisted requires matching version of python3-twisted-bin
+Package: python3-twisted-bin
+Pin: release a=buster-backports
+Pin-Priority: 500
 '''
 
 
diff --git a/plinth/modules/upgrades/__init__.py b/plinth/modules/upgrades/__init__.py
index 989bba4f5..8016d3f36 100644
--- a/plinth/modules/upgrades/__init__.py
+++ b/plinth/modules/upgrades/__init__.py
@@ -13,7 +13,7 @@ from plinth import cfg, glib, menu
 
 from .manifest import backup  # noqa, pylint: disable=unused-import
 
-version = 2
+version = 3
 
 is_essential = True