diff --git a/.readthedocs.yml b/.readthedocs.yml
index 056c691..fd19713 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -15,4 +15,5 @@ python:
     - requirements: docs-requirements.txt
 
 sphinx:
+  configuration: docs/source/conf.py
   fail_on_warning: true
diff --git a/docs/source/conf.py b/docs/source/conf.py
index c68b4bc..f400d4b 100755
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -132,7 +132,6 @@
 # html_theme_options.
 import sphinx_rtd_theme
 html_theme = 'sphinx_rtd_theme'
-html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
diff --git a/test-requirements.txt b/test-requirements.txt
index bb660a4..05552c5 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,4 +3,4 @@ pytest-cov
 pytest-trio
 outcome
 pytest-timeout
-trio >= 0.25.0
+trio >= 0.26.0
diff --git a/tests/test_misc.py b/tests/test_misc.py
index 8724149..0c178eb 100644
--- a/tests/test_misc.py
+++ b/tests/test_misc.py
@@ -333,9 +333,9 @@ def collect_exceptions(loop, context):
     )
     expected = [ValueError("hi"), ValueError("lo"), KeyError(), IndexError()]
     await raise_in_aio_loop(expected[0])
-    with trio.testing.RaisesGroup(SystemExit, strict=False):
+    with trio.testing.RaisesGroup(SystemExit, flatten_subgroups=True):
         await raise_in_aio_loop(SystemExit(0))
-    with trio.testing.RaisesGroup(SystemExit, strict=False) as result:
+    with trio.testing.RaisesGroup(SystemExit, flatten_subgroups=True) as result:
         await raise_in_aio_loop(BaseExceptionGroup("", [expected[1], SystemExit()]))
 
     assert len(result.value.exceptions) == 1
diff --git a/tests/test_trio_asyncio.py b/tests/test_trio_asyncio.py
index 045d0c1..dfbb7e5 100644
--- a/tests/test_trio_asyncio.py
+++ b/tests/test_trio_asyncio.py
@@ -124,7 +124,7 @@ async def test_cancel_loop_with_tasks(autojump_clock, shield, body_raises):
 
     if body_raises:
         catcher = trio.testing.RaisesGroup(
-            trio.testing.Matcher(ValueError, match="hi"), strict=False
+            trio.testing.Matcher(ValueError, match="hi"), flatten_subgroups=True
         )
     else:
         catcher = contextlib.nullcontext()