1 files changed, 4 insertions, 4 deletions
diff --git a/tox.ini b/tox.ini
index 1bce10a4ce..e3a53f340a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -114,10 +114,11 @@ skip_install = True
 basepython = python3.6
 deps =
     flake8
-    black
+    black==19.3b0  # We pin so that our tests don't start failing on new releases of black.
 commands =
     python -m black --check --diff .
     /bin/sh -c "flake8 synapse tests scripts scripts-dev scripts/hash_password scripts/register_new_matrix_user scripts/synapse_port_db synctl {env:PEP8SUFFIX:}"
+    {toxinidir}/scripts-dev/config-lint.sh
 
 [testenv:check_isort]
 skip_install = True
@@ -161,12 +162,11 @@ basepython = python3.7
 skip_install = True
 deps =
     {[base]deps}
-    mypy
+    mypy==0.730
     mypy-zope
-    typeshed
 env =
     MYPYPATH = stubs/
 extras = all
-commands = mypy --show-traceback \
+commands = mypy --show-traceback --check-untyped-defs --show-error-codes --follow-imports=normal \
             synapse/logging/ \
             synapse/config/