diff --git a/CHANGES.rst b/CHANGES.rst
index 6f7279e8011..999c49f4944 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,9 @@
+NEXT
+====
+
+* Fix tests for Python 3.15.0a5+
+  Patch by Edgar Ramírez-Mondragón
+
 Release 9.1.0 (released Dec 31, 2025)
 =====================================
 
diff --git a/tests/conftest.py b/tests/conftest.py
index b884f132f79..2a91eedb33a 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -27,13 +27,20 @@ def _init_console(
     locale_dir: str | os.PathLike[str] | None = sphinx.locale._LOCALE_DIR,
     catalog: str = 'sphinx',
 ) -> tuple[gettext.NullTranslations, bool]:
-    """Monkeypatch ``init_console`` to skip its action.
+    """Monkeypatch ``init_console`` to skip locale loading.
 
     Some tests rely on warning messages in English. We don't want
     CLI tests to bleed over those tests and make their warnings
     translated.
+
+    We still register a NullTranslations so that ``__()`` (the console
+    translation function) returns a plain ``str`` rather than a lazy
+    ``_TranslationProxy``.  NullTranslations passes every message through
+    unchanged, so all strings stay in English.
     """
-    return gettext.NullTranslations(), False
+    null = gettext.NullTranslations()
+    sphinx.locale.translators['console', catalog] = null
+    return null, False
 
 
 sphinx.locale.init_console = _init_console
diff --git a/tests/test_builders/test_build_linkcheck.py b/tests/test_builders/test_build_linkcheck.py
index 7b036ec4506..b54cc97268b 100644
--- a/tests/test_builders/test_build_linkcheck.py
+++ b/tests/test_builders/test_build_linkcheck.py
@@ -720,7 +720,7 @@ def test_follows_redirects_on_HEAD(
         'index.rst:1: [redirected with Found] '
         f'http://{address}/ to http://{address}/?redirected=1\n'
     )
-    assert stderr == textwrap.dedent(
+    assert strip_escape_sequences(stderr) == textwrap.dedent(
         """\
         127.0.0.1 - - [] "HEAD / HTTP/1.1" 302 -
         127.0.0.1 - - [] "HEAD /?redirected=1 HTTP/1.1" 204 -
@@ -749,7 +749,7 @@ def test_follows_redirects_on_GET(
         'index.rst:1: [redirected with Found] '
         f'http://{address}/ to http://{address}/?redirected=1\n'
     )
-    assert stderr == textwrap.dedent(
+    assert strip_escape_sequences(stderr) == textwrap.dedent(
         """\
         127.0.0.1 - - [] "HEAD / HTTP/1.1" 405 -
         127.0.0.1 - - [] "GET / HTTP/1.1" 302 -
@@ -780,7 +780,7 @@ def test_warns_disallowed_redirects(
         'index.rst:1: [redirected with Found] '
         f'http://{address}/ to http://{address}/?redirected=1\n'
     )
-    assert stderr == textwrap.dedent(
+    assert strip_escape_sequences(stderr) == textwrap.dedent(
         """\
         127.0.0.1 - - [] "HEAD / HTTP/1.1" 302 -
         127.0.0.1 - - [] "HEAD /?redirected=1 HTTP/1.1" 204 -
@@ -1136,7 +1136,7 @@ def test_too_many_requests_retry_after_int_delay(
     rate_limit_log = f'-rate limited-   http://{address}/ | sleeping...\n'
     assert rate_limit_log in strip_escape_sequences(app.status.getvalue())
     _stdout, stderr = capsys.readouterr()
-    assert stderr == textwrap.dedent(
+    assert strip_escape_sequences(stderr) == textwrap.dedent(
         """\
         127.0.0.1 - - [] "HEAD / HTTP/1.1" 429 -
         127.0.0.1 - - [] "HEAD / HTTP/1.1" 200 -
@@ -1188,7 +1188,7 @@ def test_too_many_requests_retry_after_HTTP_date(
         'info': '',
     }
     _stdout, stderr = capsys.readouterr()
-    assert stderr == textwrap.dedent(
+    assert strip_escape_sequences(stderr) == textwrap.dedent(
         """\
         127.0.0.1 - - [] "HEAD / HTTP/1.1" 429 -
         127.0.0.1 - - [] "HEAD / HTTP/1.1" 200 -
@@ -1221,7 +1221,7 @@ def test_too_many_requests_retry_after_without_header(
         'info': '',
     }
     _stdout, stderr = capsys.readouterr()
-    assert stderr == textwrap.dedent(
+    assert strip_escape_sequences(stderr) == textwrap.dedent(
         """\
         127.0.0.1 - - [] "HEAD / HTTP/1.1" 429 -
         127.0.0.1 - - [] "HEAD / HTTP/1.1" 200 -