diff --git a/frigate/app.py b/frigate/app.py
index c5357e400..1535eeaf6 100644
--- a/frigate/app.py
+++ b/frigate/app.py
@@ -279,6 +279,17 @@ class FrigateApp:
             except PermissionError:
                 logger.error("Unable to write to /config to save DB state")
 
+        def cleanup_timeline_db(db: SqliteExtDatabase) -> None:
+            db.execute_sql(
+                "DELETE FROM timeline WHERE source_id NOT IN (SELECT id FROM event);"
+            )
+
+            try:
+                with open(f"{CONFIG_DIR}/.timeline", "w") as f:
+                    f.write(str(datetime.datetime.now().timestamp()))
+            except PermissionError:
+                logger.error("Unable to write to /config to save DB state")
+
         # Migrate DB location
         old_db_path = DEFAULT_DB_PATH
         if not os.path.isfile(self.config.database.path) and os.path.isfile(
@@ -294,6 +305,11 @@ class FrigateApp:
         router = Router(migrate_db)
         router.run()
 
+        # this is a temporary check to clean up user DB from beta
+        # will be removed before final release
+        if not os.path.exists(f"{CONFIG_DIR}/.timeline"):
+            cleanup_timeline_db(migrate_db)
+
         # check if vacuum needs to be run
         if os.path.exists(f"{CONFIG_DIR}/.vacuum"):
             with open(f"{CONFIG_DIR}/.vacuum") as f: