diff --git a/website/site/content/docs/install/prereq.md b/website/site/content/docs/install/prereq.md
index 4e711ce8..a11166c4 100644
--- a/website/site/content/docs/install/prereq.md
+++ b/website/site/content/docs/install/prereq.md
@@ -32,9 +32,9 @@ component.
 
 ## External Programs for Joex
 
-- [Ghostscript](http://pages.cs.wisc.edu/~ghost/) (the `gs` command)
-  is used to extract/convert PDF files into images that are then fed
-  to ocr. It is available on most GNU/Linux distributions.
+- [Ghostscript](https://www.ghostscript.com/) (the `gs` command) is
+  used to extract/convert PDF files into images that are then fed to
+  ocr. It is available on most GNU/Linux distributions.
 - [Unpaper](https://github.com/Flameeyes/unpaper) is a program that
   pre-processes images to yield better results when doing ocr. If this
   is not installed, docspell tries without it. However, it is
diff --git a/website/site/content/docs/joex/file-processing.md b/website/site/content/docs/joex/file-processing.md
index 3aee1edf..5a4da053 100644
--- a/website/site/content/docs/joex/file-processing.md
+++ b/website/site/content/docs/joex/file-processing.md
@@ -251,8 +251,8 @@ machine/setup.
 Another limit is `max-image-size` which defines the size of an image
 in pixel (`width * height`) where processing is skipped.
 
-Then [ghostscript](http://pages.cs.wisc.edu/~ghost/) is used to
-extract single pages into image files and
+Then [ghostscript](https://www.ghostscript.com/) is used to extract
+single pages into image files and
 [unpaper](https://github.com/Flameeyes/unpaper) is used to optimize
 the images for ocr. Unpaper is optional, if it is not found, it is
 skipped, which may be a compromise on slow machines.