diff --git a/internal/database/database.go b/internal/database/database.go
index 8e20ce1..aac7744 100644
--- a/internal/database/database.go
+++ b/internal/database/database.go
@@ -2000,9 +2000,10 @@ func (d *Database) Analyze(ctx context.Context) error {
 }
 
 // Checkpoint runs a WAL checkpoint to transfer data from the WAL to the main database.
-// Uses PASSIVE mode which doesn't block writers but may not checkpoint all frames.
+// Uses TRUNCATE mode which blocks writers briefly but ensures complete checkpoint,
+// keeping the WAL small for fast read performance.
 func (d *Database) Checkpoint(ctx context.Context) error {
-	_, err := d.db.ExecContext(ctx, "PRAGMA wal_checkpoint(PASSIVE)")
+	_, err := d.db.ExecContext(ctx, "PRAGMA wal_checkpoint(TRUNCATE)")
 	if err != nil {
 		return fmt.Errorf("failed to checkpoint WAL: %w", err)
 	}