diff --git a/R/mixture.R b/R/mixture.R
index 4fc7d6d..fb49571 100644
--- a/R/mixture.R
+++ b/R/mixture.R
@@ -28,11 +28,9 @@ dist_mixture <- function(..., weights = numeric()){
 
 #' @export
 format.dist_mixture <- function(x, width = getOption("width"), ...){
-  dists <- lapply(x[["dist"]], format) |>
-    unlist()
+  dists <- unlist(lapply(x[["dist"]], format))
 
-  dist_info <- paste0(x[["w"]], "*", dists) |>
-    paste0(collapse = ", ")
+  dist_info <- paste0(x[["w"]], "*", dists, collapse = ", ")
 
   long_dist <- paste0("mixture(", dist_info, ")")
   short_dist <- paste0("mixture(n=", length(dists), ")")
diff --git a/tests/testthat/test_gev.R b/tests/testthat/test_gev.R
index 874fad8..f4c55ad 100644
--- a/tests/testthat/test_gev.R
+++ b/tests/testthat/test_gev.R
@@ -43,15 +43,15 @@ test_that("GEV", {
   # Generate
   set.seed(123)
   rand_dist <- distributional::generate(dist, times = 1e6)
-  expect_equal(lapply(rand_dist[1:2], mean) |> unlist(),
+  expect_equal(unlist(lapply(rand_dist[1:2], mean)),
     mean(dist)[1:2],
     tolerance = 0.01
   )
-  expect_equal(lapply(rand_dist[1:2], var) |> unlist(),
+  expect_equal(unlist(lapply(rand_dist[1:2], var)),
     distributional::variance(dist)[1:2],
     tolerance = 0.01
   )
-  expect_equal(lapply(rand_dist, median) |> unlist(),
+  expect_equal(unlist(lapply(rand_dist, median)),
     median(dist),
     tolerance = 0.01
   )
diff --git a/tests/testthat/test_gpd.R b/tests/testthat/test_gpd.R
index b40172f..1699436 100644
--- a/tests/testthat/test_gpd.R
+++ b/tests/testthat/test_gpd.R
@@ -42,15 +42,15 @@ test_that("GPD", {
   # Generate
   set.seed(123)
   rand_dist <- distributional::generate(dist, times = 1e6)
-  expect_equal(lapply(rand_dist[1:2], mean) |> unlist(),
+  expect_equal(unlist(lapply(rand_dist[1:2], mean)),
     mean(dist)[1:2],
     tolerance = 0.01
   )
-  expect_equal(lapply(rand_dist[1:2], var) |> unlist(),
+  expect_equal(unlist(lapply(rand_dist[1:2], var)),
     distributional::variance(dist)[1:2],
     tolerance = 0.01
   )
-  expect_equal(lapply(rand_dist, median) |> unlist(),
+  expect_equal(unlist(lapply(rand_dist, median)),
     median(dist),
     tolerance = 0.01
   )