diff --git a/gitlab-changelog.py b/gitlab-changelog.py
index d2026acd043a21ae4374ead29c57c0d26926560c..a37a9360fd4e4209fdac05c276aea599674ee920 100755
--- a/gitlab-changelog.py
+++ b/gitlab-changelog.py
@@ -20,12 +20,15 @@
 NEWS/ChangeLog generation script for GitLab.
 
 Usage:
-    gitlab-changelog.py GNOME/glib 2.58.2..
+    gitlab-changelog.py -H https://gitlab.gnome.org/ -t <TOKEN> GNOME/glib 2.58.2..
 then put the output into NEWS/ChangeLog and make the release.
 
 To generate an authentication token for the script, go to
     https://gitlab.gnome.org/profile/personal_access_tokens
 and generate a token with the `api` scope.
+
+To install the dependencies for this script:
+    pip3 install python-gitlab GitPython
 """
 
 import argparse