diff --git a/DESCRIPTION b/DESCRIPTION
index e7a4a570..9fac4778 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -19,8 +19,7 @@ Imports:
     httr,
     jsonlite,
     sys,
-    utils,
-    withr
+    utils
 Suggests: 
     knitr,
     rmarkdown,
diff --git a/R/with_nix.R b/R/with_nix.R
index 02f31fc2..d17d7256 100644
--- a/R/with_nix.R
+++ b/R/with_nix.R
@@ -207,7 +207,7 @@ with_nix <- function(expr,
     
     # 1) save all function args onto a temporary folder each with
     # `<tag.Rds>` and `value` as serialized objects from RAM ---------------------
-    temp_dir <- withr::local_tempdir()
+    temp_dir <- tempdir()
     serialize_args(args, temp_dir)
     
     # cast list of symbols/names and calls to list of strings; this is to prepare
diff --git a/dev/flat_rix.Rmd b/dev/flat_rix.Rmd
index 0fda4396..fafae199 100644
--- a/dev/flat_rix.Rmd
+++ b/dev/flat_rix.Rmd
@@ -391,7 +391,7 @@ flag_rpkgs
 ```{r, tests-rix}
 testthat::test_that("Snapshot test of rix()", {
 
-  path_default_nix <- withr::local_tempdir()
+  path_default_nix <- tempdir()
 
   save_default_nix_test <- function(ide, path_default_nix) {
 
@@ -447,7 +447,7 @@ testthat::test_that("Snapshot test of rix()", {
 ```{r, tests-add_quarto_to_sys_pkgs}
 testthat::test_that("Quarto gets added to sys packages", {
 
-  path_default_nix <- withr::local_tempdir()
+  path_default_nix <- tempdir()
 
   save_default_nix_test <- function(pkgs, path_default_nix) {
 
diff --git a/dev/flat_rix_init.Rmd b/dev/flat_rix_init.Rmd
index 75893feb..345ddbab 100644
--- a/dev/flat_rix_init.Rmd
+++ b/dev/flat_rix_init.Rmd
@@ -327,7 +327,7 @@ nix_rprofile <- function() {
 ```{r, tests-rix_init}
 testthat::test_that("Snapshot test of rix_init()", {
 
-  path_env_nix <- withr::local_tempdir()
+  path_env_nix <- tempdir()
 
   save_rix_init_test <- function(path_env_nix) {
 
diff --git a/dev/flat_with_nix.Rmd b/dev/flat_with_nix.Rmd
index 25989477..3eaab10e 100644
--- a/dev/flat_with_nix.Rmd
+++ b/dev/flat_with_nix.Rmd
@@ -216,7 +216,7 @@ with_nix <- function(expr,
     
     # 1) save all function args onto a temporary folder each with
     # `<tag.Rds>` and `value` as serialized objects from RAM ---------------------
-    temp_dir <- withr::local_tempdir()
+    temp_dir <- tempdir()
     serialize_args(args, temp_dir)
     
     # cast list of symbols/names and calls to list of strings; this is to prepare
@@ -845,7 +845,7 @@ testthat::test_that("Testing `with_nix()` if Nix is installed", {
 
   #skip_on_covr()
 
-  path_subshell <- withr::local_tempdir()
+  path_subshell <- tempdir()
 
   rix_init(
     project_path = path_subshell,
@@ -884,7 +884,7 @@ testthat::test_that("Test `with_nix()` if Nix is installed on R 4.2.0", {
   
   skip_if_not(nix_shell_available())
   
-  path_subshell <- withr::local_tempdir()
+  path_subshell <- tempdir()
   
   rix_init(
     project_path = path_subshell,
diff --git a/tests/testthat/test-rix.R b/tests/testthat/test-rix.R
index e9a685a5..9fb98a55 100644
--- a/tests/testthat/test-rix.R
+++ b/tests/testthat/test-rix.R
@@ -2,7 +2,7 @@
 
 testthat::test_that("Snapshot test of rix()", {
 
-  path_default_nix <- withr::local_tempdir()
+  path_default_nix <- tempdir()
 
   save_default_nix_test <- function(ide, path_default_nix) {
 
@@ -56,7 +56,7 @@ testthat::test_that("Snapshot test of rix()", {
 
 testthat::test_that("Quarto gets added to sys packages", {
 
-  path_default_nix <- withr::local_tempdir()
+  path_default_nix <- tempdir()
 
   save_default_nix_test <- function(pkgs, path_default_nix) {
 
diff --git a/tests/testthat/test-rix_init.R b/tests/testthat/test-rix_init.R
index b891db82..dec0e784 100644
--- a/tests/testthat/test-rix_init.R
+++ b/tests/testthat/test-rix_init.R
@@ -2,7 +2,7 @@
 
 testthat::test_that("Snapshot test of rix_init()", {
 
-  path_env_nix <- withr::local_tempdir()
+  path_env_nix <- tempdir()
 
   save_rix_init_test <- function(path_env_nix) {
 
diff --git a/tests/testthat/test-with_nix.R b/tests/testthat/test-with_nix.R
index 77ee3ffc..6d36a438 100644
--- a/tests/testthat/test-with_nix.R
+++ b/tests/testthat/test-with_nix.R
@@ -8,7 +8,7 @@ testthat::test_that("Testing `with_nix()` if Nix is installed", {
 
   #skip_on_covr()
 
-  path_subshell <- withr::local_tempdir()
+  path_subshell <- tempdir()
 
   rix_init(
     project_path = path_subshell,
@@ -47,7 +47,7 @@ testthat::test_that("Test `with_nix()` if Nix is installed on R 4.2.0", {
   
   skip_if_not(nix_shell_available())
   
-  path_subshell <- withr::local_tempdir()
+  path_subshell <- tempdir()
   
   rix_init(
     project_path = path_subshell,