I would like to add a positive trend to the following simulated ARIMA variable

price <- arima.sim(n = n, list(ar = c(0.8897, -0.4858), ma = c(0.279, 0.2488)), sd = sqrt(0.001))

In one attempt I tried to change the sign of the second term in ar, but I got the error that this made the series non-stationary. Wether it is stationary or not does not bother me, I just wanted a positive trend.