diff --git a/admin_server.py b/admin_server.py
index c7eaaf1..17979c1 100644
--- a/admin_server.py
+++ b/admin_server.py
@@ -330,6 +330,11 @@ def init_db(conn: sqlite3.Connection):
         conn.execute("ALTER TABLE assets ADD COLUMN longitude REAL DEFAULT NULL")
     if "geofence_radius_meters" not in asset_cols:
         conn.execute("ALTER TABLE assets ADD COLUMN geofence_radius_meters INTEGER DEFAULT 50")
+    # v5 migration: dex_report_date + install_date
+    if "dex_report_date" not in asset_cols:
+        conn.execute("ALTER TABLE assets ADD COLUMN dex_report_date TEXT DEFAULT NULL")
+    if "install_date" not in asset_cols:
+        conn.execute("ALTER TABLE assets ADD COLUMN install_date TEXT DEFAULT NULL")
     cursor = conn.execute("PRAGMA table_info(locations)")
     loc_cols = {row[1] for row in cursor.fetchall()}
     if "latitude" not in loc_cols: