diff --git a/DESCRIPTION b/DESCRIPTION
index ac33568f9c..28279feb02 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: knitr
 Type: Package
 Title: A General-Purpose Package for Dynamic Report Generation in R
-Version: 1.47.2
+Version: 1.47.3
 Authors@R: c(
     person("Yihui", "Xie", role = c("aut", "cre"), email = "xie@yihui.name", comment = c(ORCID = "0000-0003-0645-5666")),
     person("Abhraneel", "Sarma", role = "ctb"),
diff --git a/NEWS.md b/NEWS.md
index b9916a8c10..e2b0e63bcc 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -4,6 +4,8 @@
 
 - Fix regression from 1.46 with `collapse = TRUE` option not correctly collapsing source code and output into one when code chunk returns multiple outputs (thanks, @jennybc, @florisvdh, tidyverse/reprex#463).
 
+- `hook_purl()` should not write the path of the R script to the output document (thanks, @fenguoerbian, #2348).
+
 # CHANGES IN knitr VERSION 1.47
 
 ## NEW FEATURES
diff --git a/R/hooks-extra.R b/R/hooks-extra.R
index fe39e81abd..0b88ca8871 100644
--- a/R/hooks-extra.R
+++ b/R/hooks-extra.R
@@ -155,4 +155,5 @@ hook_purl = function(before, options, ...) {
     )
     write_utf8(code, output)
   }
+  invisible()
 }