diff --git a/R/roxygen-examples-parse.R b/R/roxygen-examples-parse.R
index ac25ce950..a428acae4 100644
--- a/R/roxygen-examples-parse.R
+++ b/R/roxygen-examples-parse.R
@@ -179,6 +179,6 @@ needs_rd_emulation <- function(roxygen) {
 #' @keywords internal
 post_parse_roxygen <- function(raw) {
   raw %>%
-    paste0(collapse = "") %>%
+    paste(collapse = "") %>%
     convert_newlines_to_linebreaks()
 }
diff --git a/R/utils-cache.R b/R/utils-cache.R
index 6b57fb788..ce255587e 100644
--- a/R/utils-cache.R
+++ b/R/utils-cache.R
@@ -9,7 +9,7 @@ hash_standardize <- function(text) {
   text %>%
     convert_newlines_to_linebreaks() %>%
     enc2utf8() %>%
-    paste0(collapse = "\n") %>%
+    paste(collapse = "\n") %>%
     list()
 }
 
diff --git a/touchstone/config.json b/touchstone/config.json
index 84f9d3441..601c57ee2 100644
--- a/touchstone/config.json
+++ b/touchstone/config.json
@@ -1,9 +1,8 @@
 {
   "os": "ubuntu-latest",
-  "r": "4.2",
-  "rspm": "https://packagemanager.rstudio.com/all/__linux__/focal/2023-03-01",
+  "r": "4.4",
+  "rspm": "https://packagemanager.rstudio.com/all/__linux__/focal/2024-05-01",
   "benchmarking_repo": "lorenzwalthert/here",
   "benchmarking_ref": "bf0167746da7fe4fb156082bad93c9e5cd3386bd",
   "benchmarking_path": "touchstone/sources/here",
-
 }