diff --git a/tests/testthat.R b/tests/testthat.R
index 9034090..0476d09 100644
--- a/tests/testthat.R
+++ b/tests/testthat.R
@@ -1,6 +1,4 @@
 library(testthat)
 library(growthcleanr)
 
-testthat::skip_on_cran()
-
 test_check("growthcleanr")
diff --git a/tests/testthat/test-cdc.R b/tests/testthat/test-cdc.R
index 2d7f2f3..86a96cc 100644
--- a/tests/testthat/test-cdc.R
+++ b/tests/testthat/test-cdc.R
@@ -1,3 +1,5 @@
+testthat::skip_on_cran()
+
 test_that("ext_bmiz produces comparable output to CDC SAS implementation", {
   # run ext_bmiz on input data
   mydatapath <-
diff --git a/tests/testthat/test-cleangrowth.R b/tests/testthat/test-cleangrowth.R
index 7585a14..5180485 100644
--- a/tests/testthat/test-cleangrowth.R
+++ b/tests/testthat/test-cleangrowth.R
@@ -1,3 +1,5 @@
+testthat::skip_on_cran()
+
 test_that("growthcleanr works as expected on pediatric synthetic data", {
 
   # Run cleangrowth() on syngrowth data
diff --git a/tests/testthat/test-utils.R b/tests/testthat/test-utils.R
index 0712de3..d231407 100644
--- a/tests/testthat/test-utils.R
+++ b/tests/testthat/test-utils.R
@@ -1,3 +1,5 @@
+testthat::skip_on_cran()
+
 test_that("splitinput splits files correctly with default values", {
   create_df <- function(num_ids, num_obs) {
     df <- data.frame(matrix(NA, nrow = num_ids * num_obs, ncol = 5))