diff --git a/content/administration/on_premise/source.rst b/content/administration/on_premise/source.rst
index e5fadc90d..3b43fc64a 100644
--- a/content/administration/on_premise/source.rst
+++ b/content/administration/on_premise/source.rst
@@ -277,18 +277,22 @@ Dependencies
 
          .. tab:: Debian/Ubuntu
 
-            For Debian-based systems, the packages are listed in the `debian/control
-            <{GITHUB_PATH}/debian/control>`_ file of the Odoo sources.
-
             On Debian/Ubuntu, the following commands should install the required packages:
 
             .. code-block:: console
 
-               $ cd /CommunityPath
-               $ sed -n -e '/^Depends:/,/^Pre/ s/ python3-\(.*\),/python3-\1/p' debian/control | sudo xargs apt-get install -y
+               $ cd odoo #CommunityPath
+               $ sudo ./setup/debinstall.sh
+
+            The `setup/debinstall.sh` script will parse the `debian/control
+            <{GITHUB_PATH}/debian/control>`_ file and install the found packages.
 
          .. tab:: Install with pip
 
+            .. warning::
+               Using pip may lead to security issues and broken dependencies; only do this if you
+               know what you are doing.
+
             As some of the Python packages need a compilation step, they require system libraries to
             be installed.
 
diff --git a/tests/checkers/redirect_rules.py b/tests/checkers/redirect_rules.py
index 2ca6ee89a..81096aa80 100644
--- a/tests/checkers/redirect_rules.py
+++ b/tests/checkers/redirect_rules.py
@@ -5,7 +5,7 @@ import sphinxlint
 
 
 REDIRECT_RULE_RE = re.compile(r'^[ \t]*([\w\-/]+\.rst)[ \t]+([\w\-/]+\.rst)[ \t]*(?:#.*)?$')
-REDIRECTS_FILE_VERSION_RE = re.compile('(?:redirects/)?(?:saas-)?(\d\d\.\d)\.txt')
+REDIRECTS_FILE_VERSION_RE = re.compile(r'(?:redirects/)?(?:saas-)?(\d\d\.\d)\.txt')
 
 
 @sphinxlint.checker('.txt')