diff --git a/debian/patches/docs-conf.py-Use-sphinx_rtd_theme-instead.patch b/debian/patches/docs-conf.py-Use-sphinx_rtd_theme-instead.patch
deleted file mode 100644
index 7a0d153..0000000
--- a/debian/patches/docs-conf.py-Use-sphinx_rtd_theme-instead.patch
+++ /dev/null
@@ -1,25 +0,0 @@
-From: Carsten Schoenert <c.schoenert@t-online.de>
-Date: Mon, 12 Feb 2024 09:39:42 +0100
-Subject: docs/conf.py: Use sphinx_rtd_theme instead
-
-The used theme by upstream (pydata_sphinx_theme) isn't packaged in
-Debian, falling back than to the classical RTD theme.
-
-Forwarded: not-needed
----
- docs/conf.py | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/docs/conf.py b/docs/conf.py
-index fa5647a..337135c 100644
---- a/docs/conf.py
-+++ b/docs/conf.py
-@@ -84,7 +84,7 @@ todo_include_todos = False
- # a list of builtin themes.
- #
- 
--html_theme = "pydata_sphinx_theme"
-+html_theme = "sphinx_rtd_theme"
- html_logo = "_static/logo_short.png"
- 
- # Theme options are theme-specific and customize the look and feel of a theme
diff --git a/debian/patches/series b/debian/patches/series
deleted file mode 100644
index 607b951..0000000
--- a/debian/patches/series
+++ /dev/null
@@ -1 +0,0 @@
-docs-conf.py-Use-sphinx_rtd_theme-instead.patch
diff --git a/debian/source/format b/debian/source/format
index 163aaf8..89ae9db 100644
--- a/debian/source/format
+++ b/debian/source/format
@@ -1 +1 @@
-3.0 (quilt)
+3.0 (native)