diff --git a/R/dosing_optim.R b/R/dosing_optim.R
index 924c029..6e7db18 100644
--- a/R/dosing_optim.R
+++ b/R/dosing_optim.R
@@ -94,7 +94,7 @@
 #'   }
 #'
 #' @examples
-#' rxode2::setRxThreads(1) # limit the number of threads
+#' rxode2::setRxThreads(2L) # limit the number of threads
 #'
 #' # model
 #' mod_run001 <- list(
@@ -390,7 +390,7 @@ poso_time_cmin <- function(dat=NULL,prior_model=NULL,tdm=FALSE,
 #' }
 #'
 #' @examples
-#' rxode2::setRxThreads(1) # limit the number of threads
+#' rxode2::setRxThreads(2L) # limit the number of threads
 #'
 #' # model
 #' mod_run001 <- list(
@@ -713,7 +713,7 @@ poso_dose_auc <- function(dat=NULL,prior_model=NULL,tdm=FALSE,
 #' }
 #'
 #' @examples
-#' rxode2::setRxThreads(1) # limit the number of threads
+#' rxode2::setRxThreads(2L) # limit the number of threads
 #'
 #' # model
 #' mod_run001 <- list(
@@ -999,7 +999,7 @@ poso_dose_conc <- function(dat=NULL,prior_model=NULL,tdm=FALSE,
 #' }
 #'
 #' @examples
-#' rxode2::setRxThreads(1) # limit the number of threads
+#' rxode2::setRxThreads(2L) # limit the number of threads
 #'
 #' # model
 #' mod_run001 <- list(
diff --git a/man/poso_dose_auc.Rd b/man/poso_dose_auc.Rd
index 851a3c2..ef23bdd 100644
--- a/man/poso_dose_auc.Rd
+++ b/man/poso_dose_auc.Rd
@@ -114,7 +114,7 @@ time-concentration curve (AUC) given a population pharmacokinetic
 model, a set of individual parameters, and a target AUC.
 }
 \examples{
-rxode2::setRxThreads(1) # limit the number of threads
+rxode2::setRxThreads(2L) # limit the number of threads
 
 # model
 mod_run001 <- list(
diff --git a/man/poso_dose_conc.Rd b/man/poso_dose_conc.Rd
index 339ef4e..45c1121 100644
--- a/man/poso_dose_conc.Rd
+++ b/man/poso_dose_conc.Rd
@@ -110,7 +110,7 @@ of individual parameters, a selected point in time, and a target
 concentration.
 }
 \examples{
-rxode2::setRxThreads(1) # limit the number of threads
+rxode2::setRxThreads(2L) # limit the number of threads
 
 # model
 mod_run001 <- list(
diff --git a/man/poso_inter_cmin.Rd b/man/poso_inter_cmin.Rd
index c50be2d..1e26d74 100644
--- a/man/poso_inter_cmin.Rd
+++ b/man/poso_inter_cmin.Rd
@@ -87,7 +87,7 @@ pharmacokinetic model, a set of individual parameters, and a
 target concentration.
 }
 \examples{
-rxode2::setRxThreads(1) # limit the number of threads
+rxode2::setRxThreads(2L) # limit the number of threads
 
 # model
 mod_run001 <- list(
diff --git a/man/poso_time_cmin.Rd b/man/poso_time_cmin.Rd
index a4698b7..5a1d1ae 100644
--- a/man/poso_time_cmin.Rd
+++ b/man/poso_time_cmin.Rd
@@ -117,7 +117,7 @@ Predicts the time needed to reach a selected trough concentration
 parameters, a dose, and a target Cmin.
 }
 \examples{
-rxode2::setRxThreads(1) # limit the number of threads
+rxode2::setRxThreads(2L) # limit the number of threads
 
 # model
 mod_run001 <- list(
diff --git a/tests/testthat.R b/tests/testthat.R
index 8f0c9fb..0e825b9 100644
--- a/tests/testthat.R
+++ b/tests/testthat.R
@@ -1,6 +1,6 @@
 library(rxode2)
 library(posologyr)
 library(testthat)
-setRxThreads(1L) #for CRAN, following the advice of mattfidler
+setRxThreads(2L) #for CRAN, following the advice of mattfidler
 
 test_check("posologyr")
diff --git a/vignettes/a_posteriori_dosing.Rmd b/vignettes/a_posteriori_dosing.Rmd
index 1369961..2156055 100644
--- a/vignettes/a_posteriori_dosing.Rmd
+++ b/vignettes/a_posteriori_dosing.Rmd
@@ -14,7 +14,7 @@ knitr::opts_chunk$set(
 )
 set.seed(1)
 library(rxode2)
-setRxThreads(1L)  # limit the number of threads
+setRxThreads(2L)  # limit the number of threads
 ```
 
 ```{r setup}
diff --git a/vignettes/a_priori_dosing.Rmd b/vignettes/a_priori_dosing.Rmd
index c571b61..7a45d4f 100644
--- a/vignettes/a_priori_dosing.Rmd
+++ b/vignettes/a_priori_dosing.Rmd
@@ -14,7 +14,7 @@ knitr::opts_chunk$set(
 )
 set.seed(1)
 library(rxode2)
-setRxThreads(1L)  # limit the number of threads
+setRxThreads(2L)  # limit the number of threads
 ```
 
 ```{r setup}
diff --git a/vignettes/auc_based_dosing.Rmd b/vignettes/auc_based_dosing.Rmd
index b275e75..f9aa07d 100644
--- a/vignettes/auc_based_dosing.Rmd
+++ b/vignettes/auc_based_dosing.Rmd
@@ -14,7 +14,7 @@ knitr::opts_chunk$set(
 )
 set.seed(1)
 library(rxode2)
-setRxThreads(1L)  # limit the number of threads
+setRxThreads(2L)  # limit the number of threads
 ```
 
 ```{r setup}
diff --git a/vignettes/multiple_endpoints.Rmd b/vignettes/multiple_endpoints.Rmd
index 3e51b18..33cc48f 100644
--- a/vignettes/multiple_endpoints.Rmd
+++ b/vignettes/multiple_endpoints.Rmd
@@ -14,7 +14,7 @@ knitr::opts_chunk$set(
 )
 set.seed(1)
 library(rxode2)
-setRxThreads(1L)  # limit the number of threads
+setRxThreads(2L)  # limit the number of threads
 ```
 
 ```{r setup}