diff --git a/tests/testthat/helper-model.R b/tests/testthat/helper-model.R
index 181b691..f4dd940 100644
--- a/tests/testthat/helper-model.R
+++ b/tests/testthat/helper-model.R
@@ -87,7 +87,6 @@ expect_can_tune_boost_tree <- function(model) {
   mtcars$cyl <- factor(mtcars$cyl)
   mtcars$vs <- factor(mtcars$vs)
 
-  grid_df <- data.frame(trees = c(10, 20))
   resamples <- rsample::vfold_cv(mtcars, v = 2)
 
   # regression
@@ -95,12 +94,12 @@ expect_can_tune_boost_tree <- function(model) {
     parsnip::set_mode(model, "regression"),
     mpg ~ .,
     resamples = resamples,
-    grid = 3,
+    grid = 2,
     metrics = yardstick::metric_set(yardstick::rmse)
   )
 
   expect_equal(nrow(adj), nrow(resamples))
-  expect_equal(nrow(tune::collect_metrics(adj)), 3)
+  expect_equal(nrow(tune::collect_metrics(adj)), 2)
   expect_true(all(!is.nan(tune::collect_metrics(adj)$mean)))
 
   # classification