1 files changed, 4 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 9ff70fe312..c18e89b014 100644
--- a/tox.ini
+++ b/tox.ini
@@ -157,7 +157,7 @@ commands = isort -c --df --sp setup.cfg {[base]lint_targets}
 skip_install = True
 deps = towncrier>=18.6.0rc1
 commands =
-   python -m towncrier.check --compare-with=origin/develop
+   python -m towncrier.check --compare-with=origin/dinsic
 
 [testenv:check-sampleconfig]
 commands = {toxinidir}/scripts-dev/generate_sample_config --check
@@ -189,5 +189,8 @@ commands=
 [testenv:mypy]
 deps =
     {[base]deps}
+    # Type hints are broken with Twisted > 20.3.0, see https://github.com/matrix-org/synapse/issues/9513
+    # TODO: Remove after merging in the fixes from mainline
+    twisted==20.3.0
 extras = all,mypy
 commands = mypy