diff --git a/debian/changelog b/debian/changelog
index 03fe832..248dda6 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -10,6 +10,9 @@ patroni (1.6.3-2) UNRELEASED; urgency=medium
   * debian/patches/requirements_setuptools.patch: New patch, add setuptools to
     requirements, so that python3-pkg-resources is picked up as package
     dependency by dh_python3.
+  * debian/patches/offline_intersphinx.patch: New patch, force usage of offline
+    objects.inv from python-doc package instead of downloading it.
+  * debian/control (Build-Depends): Added python3-doc.
 
  -- Debian PostgreSQL Maintainers <team+postgresql@tracker.debian.org>  Tue, 10 Dec 2019 22:36:02 +0100
 
diff --git a/debian/control b/debian/control
index 401300f..bfd1f35 100644
--- a/debian/control
+++ b/debian/control
@@ -18,6 +18,7 @@ Build-Depends:
  python3-consul (>= 0.7.0),
  python3-dateutil,
  python3-dnspython,
+ python3-doc,
  python3-etcd (>= 0.4.3),
  python3-flake8,
  python3-kazoo,
diff --git a/debian/patches/offline_intersphinx.patch b/debian/patches/offline_intersphinx.patch
new file mode 100644
index 0000000..9a37e1e
--- /dev/null
+++ b/debian/patches/offline_intersphinx.patch
@@ -0,0 +1,21 @@
+--- ./docs/conf.py.orig	2020-01-23 18:12:00.026645214 +0100
++++ ./docs/conf.py	2020-01-23 18:13:43.635004952 +0100
+@@ -189,7 +189,17 @@
+ 
+ 
+ # Example configuration for intersphinx: refer to the Python standard library.
+-intersphinx_mapping = {'https://docs.python.org/': None}
++def check_object_path(key, url, path):
++    if os.path.isfile(path):
++        return {key: (url, path)}
++    return {}
++
++intersphinx_mapping = {}
++intersphinx_mapping.update(check_object_path('python',
++                                            'http://docs.python.org/',
++                                            '/usr/share/doc/python'
++                                              + '.'.join([str(x) for x in sys.version_info[0:2]])
++                                              + '/html/objects.inv'))
+ 
+ # A possibility to have an own stylesheet, to add new rules or override existing ones
+ # For the latter case, the CSS specificity of the rules should be higher than the default ones
diff --git a/debian/patches/series b/debian/patches/series
index 88c94a2..61e9f5f 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -4,3 +4,4 @@ acceptance_tests_system_patroni.patch
 v12_fix_recovery.conf_parameters.patch
 skip_failing_tests.patch
 requirements_setuptools.patch
+offline_intersphinx.patch