diff --git a/README.md b/README.md
index 7f9b54a4..990366bc 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ You can install the latest beta release of the **cmdstanr** R package with
 
 ```r
 # we recommend running this in a fresh R session or restarting your current session
-install.packages("cmdstanr", repos = c("https://mc-stan.org/r-packages/", getOption("repos")))
+install.packages("cmdstanr", repos = c('https://stan-dev.r-universe.dev', getOption("repos")))
 ```
 This does not install the vignettes, which take a long time to build, but they are always available
 online at https://mc-stan.org/cmdstanr/articles/.
diff --git a/vignettes/cmdstanr.Rmd b/vignettes/cmdstanr.Rmd
index d6ee023e..553701c3 100644
--- a/vignettes/cmdstanr.Rmd
+++ b/vignettes/cmdstanr.Rmd
@@ -30,7 +30,7 @@ by running the following command in R.
 
 ```{r install, eval=FALSE}
 # we recommend running this is a fresh R session or restarting your current session
-install.packages("cmdstanr", repos = c("https://mc-stan.org/r-packages/", getOption("repos")))
+install.packages("cmdstanr", repos = c('https://stan-dev.r-universe.dev', getOption("repos")))
 ```
 
 We can now load the package like any other R package. We'll also load the